Ratio-Proportion MCQs
Showing 50 questions (Total: 917)
In a club 50% of the male voters and 80% of the female voters voted for candidate A. If candidate A received 70% of the total votes, what is the ratio of male to female voters?
Correct Answer:
C: 1/2
৩ জন জেলে মিলে ৮৮০ টি মাছ ধরেছে। তাদের অংশের অনুপাত ২ : ৪ : ৫ হলে কে কত মাছ পেল?
Correct Answer:
ঘ: ১৬০, ৩২০, ৪০০
Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is :
Correct Answer:
C: 28
Explanation:
Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is : Correct Answer 28 Hints : The difference between the two numbers remain the same 1 : 2 = 2 : 4 ( maintain same difference between the two ratio) Increase is 1 unit so, 1 unit 7. Biggest number is 4 units, hence it is 7 × 4 = 28
Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number ?
Correct Answer:
C: 50
Explanation:
Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number ? Correct Answer 50 The ratio is 5ঃ4let the two numbers are 5x and 4xNow, 5x - 4x = 10x = 10The largest number is 5x = 5*10 = 50
The least whole number which when subtracted from both the terms of the ratio 6 : 7 gives a ratio less than 16:21 is :
Correct Answer:
B: 3
Explanation:
The least whole number which when subtracted from both the terms of the ratio 6 : 7 gives a ratio less than 16:21 is : Correct Answer 3 ধরি,ক্ষুদ্রতম সংখ্যা x বাদ দিলে ratio 16 : 21 এর সমান হয়। 6 - x / 7 - x = 16/21 112 - 16x = 126 - 21x 21x - 16x = 126 - 112 x = 14/5 x = 2.8 x এর মান যত বৃদ্ধি পাবে অনুপাত 16/21 এর চেয়ে তত ছোট হবে। ক্ষুদ্রতম পূর্ণ সংখ্যা x = 3
Rahim is 40 years old and Karim is 60 years old. How many years ago was the ratio of their ages 3 : 5?
Correct Answer:
B: 10 years
Explanation:
Rahim is 40 years old and Karim is 60 years old. How many years ago was the ratio of their ages 3 : 5? Correct Answer 10 years "ধরি, x বছর আগে তাদের বয়সের অনুপাত 3:5 ছিল। ∴ 40 – x : 60 - x = 3 : 5 বা, 40 - x60 - x = 35 বা, 5(40 – x) = 3 (60 – x) বা, 200 – 5x = 180 – 3x বা, 200 – 180 = 5x – 3x বা, 22 = 20 ∴ x = 10 অর্থাৎ 10 বছর আগে তাদের বয়সের অনুপাত 3 : 5 ছিল।"
The angels of a triangle are in the ratio 2:3:4. What is the value of the largest angle in the triangle ?
Correct Answer:
B: 80
The savings of an employee equals income minus expenditure. If their incomes ratio is 1 : 2 : 3 and their expenses ratio is 3 : 2 : 1, then what is the order of the employees A, B and C in the increasing order of the size of their savings?
Correct Answer:
A: A>B>C
The ratio between the perimeter and the breadth of a rectangle is 5:1. If the area of the rectangle is 216 sq.cm, what is the length of the rectangle ?
Correct Answer:
D: 18cm
The rent of a guest house was Tk 50 per day for first three days Tk 100 per day for next 5 days and Tk 300 per day for other days. The registration fee in the beginning is Tk 50. If one has to pay Tk 1300, for how many days he availed of this facility ?
Correct Answer:
A: 10
Explanation:
The rent of a guest house was Tk 50 per day for first three days Tk 100 per day for next 5 days and Tk 300 per day for other days. The registration fee in the beginning is Tk 50. If one has to pay Tk 1300, for how many days he availed of this facility ? Correct Answer 10 Hints: এই গণিতটি করতে প্রথম থেকে rent add করে যেতে হবে এবং কখন 1300। হয় তা দেখতে হবে। অথবা, option এর পাঁচটি উত্তর ব্যবহার করে দেখতে হবে। যদি, 10। দিন চিন্তা করি, খরচ = 50 + 50 × 3 + 100 × 5 + 300 × 2 = 1300 তাহলে প্রথমটি সঠিক উত্তর
Two equal glasses are respectively 1/3 and 1/4 full of milk, They are then filled up with water and the coutents mixed in a tumbler .What is the ratio of milk and water in the tumbler?
Correct Answer:
B: 7 ; 17
Explanation:
Two equal glasses are respectively 1/3 and 1/4 full of milk, They are then filled up with water and the coutents mixed in a tumbler .What is the ratio of milk and water in the tumbler? Correct Answer 7 ; 17 Quantity of milk in tumbler =14+13=712Quantity of water in tumbler=(1−14)+(1−13)=34+23=1712So, ratio of milk and water =712:1712=7 : 17
If the angles of a triangle are in the ratio 1: 2: 2 triangle --
Correct Answer:
A: is isosceles
Explanation:
If the angles of a triangle are in the ratio 1: 2: 2 triangle -- Correct Answer is isosceles অনুপাতের whole = 1 + 2 + 2 = 5, The smallest angle হবে 15th of the sum of three angle,15×180 = 36. তাহলে অন্য দুটি angle হচ্ছে 2×36 = 72
If the ratio of boys and girls in a school is 5: 3 . which of the following could not be the number of students in the school?
Correct Answer:
D: 178
Explanation:
If the ratio of boys and girls in a school is 5: 3 . which of the following could not be the number of students in the school? Correct Answer 178 Total of ratio = 5 + 3 = 8 512, 416 and 234 can be divided by 8 but 178 can not be divided by 8. 178 can not be number of students in the school.
A Fast food shop sells pizza in 3 sizes: large, super, and jumbo. One day the shop sold 240 pizzas, and the ratio of sales of large to super to jumbo was 8 : 17 : 15. How many jumbo pizzas were sold that day?
Correct Answer:
B: 90
Explanation:
A Fast food shop sells pizza in 3 sizes: large, super, and jumbo. One day the shop sold 240 pizzas, and the ratio of sales of large to super to jumbo was 8 : 17 : 15. How many jumbo pizzas were sold that day? Correct Answer 90 Total of ratio = 8 + 17 + 15 = 40 No. of jumbo pizzas sold = 15/40 ×240 = 90
A 180 liter mixture of milk and water contains 20% water. How much milk, in liters, must be added to the mixture so that the new mixture will contain water and milk in the ratio of 1 : 7?
Correct Answer:
B: 108 liters
Explanation:
A 180 liter mixture of milk and water contains 20% water. How much milk, in liters, must be added to the mixture so that the new mixture will contain water and milk in the ratio of 1 : 7? Correct Answer 108 liters Amount of water = 20/100 ×180 = 36 liter Amount of milk = 80 /100 ×180 = 144 liter Let, amount of milk to be added is x 36/(144 + x) = 1/7 144 + x = 252 x = 108
করিম ও রহিমের বেতনের অনুপাত ৭ঃ৫; করিমের বেতন রহিমের বেতন অপেক্ষা ৪০০ টাকা বেশি। রহিমের বেতন কত?
Correct Answer:
খ: ১০০০ টাকা
Explanation:
করিম ও রহিমের বেতনের অনুপাত ৭ঃ৫; করিমের বেতন রহিমের বেতন অপেক্ষা ৪০০ টাকা বেশি। রহিমের বেতন কত? সঠিক উত্তর ১০০০ টাকা অনুপাতের বিয়োগফল = ৭ - ৫ = ২ ২ অনুপাত সমতুল্য = ৪০০ ৫ অনুপাত সমতুল্য = (৪০০×৫)/২ = ১০০০ টাকা
ক, খ, ও গ একত্রে ব্যবসা করে ১২০০ টাকা লাভ করে। যদি ক, খ, ও গ এর মূলধনের অনুপাত ২ঃ৩ঃ৫ হয়, তবে ক টাকা লাভ পাবে-
Correct Answer:
গ: ২৪০ টাকা
Explanation:
ক, খ, ও গ একত্রে ব্যবসা করে ১২০০ টাকা লাভ করে। যদি ক, খ, ও গ এর মূলধনের অনুপাত ২ঃ৩ঃ৫ হয়, তবে ক টাকা লাভ পাবে- সঠিক উত্তর ২৪০ টাকা অনুপাতের যোগফল = ২ + ৩ + ৫ = ১০ ক লাভ পাবে, ১২০০ এর ২/১০ = ২৪০
A man has Tk. 210 in coins alone. The coins consist of one taka, 50 paisa and whose numbers form a ratio of 5 : 6 : 8 respectively. How many coins are there in the 50 paisa denomination?
Correct Answer:
C: 126
Explanation:
A man has Tk. 210 in coins alone. The coins consist of one taka, 50 paisa and whose numbers form a ratio of 5 : 6 : 8 respectively. How many coins are there in the 50 paisa denomination? Correct Answer 126 ধরি, 1 টাকা 5x টি 50 পয়সা 6x ” 25 ” 8x ” শর্তমতে, 5x × 1 + 6x × 50100 + 8x × 25100 = 210 ⇒ 5x + 3x + 2x = 210 ⇒10x = 210 ∴ x = 21 ∴ 50 পয়সার মুদ্রা আছে (6 × 21) টি = 126 টি
The ratio of the age of a man and his wife is 4:3. At the time of their marriage the ratio was 5:3 and after 4 years this ratio will become 9:7. How many years ago were they married?
Correct Answer:
A: 12 years
Explanation:
The ratio of the age of a man and his wife is 4:3. At the time of their marriage the ratio was 5:3 and after 4 years this ratio will become 9:7. How many years ago were they married? Correct Answer 12 years Let, gentleman's current age be g, women's w, and they were m years ago married. Now, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mi>g</mi><mi>w</mi></mfrac><mo>&#xA0;</mo><mfrac><mn>4</mn><mn>3</mn></mfrac></math> and,<math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi>g</mi><mo> + </mo><mn>4</mn></mrow><mrow><mi>w</mi><mo> + </mo><mn>4</mn></mrow></mfrac><mo> = </mo><mfrac><mn>9</mn><mn>7</mn></mfrac></math>and, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi>g</mi><mo> - </mo><mi>m</mi></mrow><mrow><mi>w</mi><mo> - </mo><mi>m</mi></mrow></mfrac><mo>&#xA0;</mo><mo> = </mo><mo>&#xA0;</mo><mfrac><mn>5</mn><mn>3</mn></mfrac></math> Solving, g = 32, m = 12, w = 24
The cost of preparing a cricket ground of rectangular shape at 70 paisa per square meter is Tk. 420. Find the perimeter of the field if its sides are in the ratio of 3 : 2.
Correct Answer:
A: 100m
Explanation:
The cost of preparing a cricket ground of rectangular shape at 70 paisa per square meter is Tk. 420. Find the perimeter of the field if its sides are in the ratio of 3 : 2. Correct Answer 100m ধরি, দৈর্ঘ্য 3x মিটার প্রস্থ মিটার ∴ ক্ষেত্রফল 6x2 বর্গমিটার শর্তমতে, 6x2 × 70 = 420 × 100 = 420 ⇒420x2 × 100 ⇒x2 = 100 ∴x = 10 ∴ পরিসীমা = 2(3x + 2) = 10x = 10 × 10 = 100
The ratio between two numbers is 3:4 and their least common multiple is 180. What is the first number?
Correct Answer:
C: 45
Explanation:
The ratio between two numbers is 3:4 and their least common multiple is 180. What is the first number? Correct Answer 45 এ ধরনের math করতে হলে নিচের পদ্ধতিটি মনে রাখুন 3 × 4 × x = 180 so x = 15 এবং সেই সংখ্যাটি = 3 × 15 = 45
The ratio of boys to girls in a class 2/5. If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1/4. Originally, how many girls were in the class?
Correct Answer:
B: 20
Explanation:
The ratio of boys to girls in a class 2/5. If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1/4. Originally, how many girls were in the class? Correct Answer 20 Let, Originally, there were 2x boys and 5x girls in the classNow, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>2</mn><mi>x</mi><mo> - </mo><mn>2</mn></mrow><mrow><mn>5</mn><mi>x</mi><mo> + </mo><mn>4</mn></mrow></mfrac><mo> = </mo><mfrac><mn>1</mn><mn>4</mn></mfrac><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>4</mn><mfenced><mrow><mn>2</mn><mi>x</mi><mo> - </mo><mn>2</mn></mrow></mfenced><mo> = </mo><mn>5</mn><mi>x</mi><mo> + </mo><mn>4</mn><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>8</mn><mi>x</mi><mo> - </mo><mn>8</mn><mo> = </mo><mn>5</mn><mi>x</mi><mo> + </mo><mn>4</mn><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>8</mn><mi>x</mi><mo> - </mo><mn>5</mn><mi>x</mi><mo> = </mo><mn>4</mn><mo> + </mo><mn>8</mn><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>3</mn><mi>x</mi><mo> = </mo><mn>12</mn><mspace linebreak = "newline"/><mo>&#x2234;</mo></math> x = 4<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> Originally number of girls = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>5</mn><mo>&#xD7;</mo><mn>4</mn><mo> = </mo><mn>20</mn></math>
দুটি সংখ্যার অনুপাত ৪ঃ৭ প্রত্যেকটির সাথে ৪ যোগ করলে তাদের অনুপাত দাঁড়ায় ৩ঃ৫; ছোট সংখ্যাটি কত?
Correct Answer:
ক: ৩২
Explanation:
দুটি সংখ্যার অনুপাত ৪ঃ৭ প্রত্যেকটির সাথে ৪ যোগ করলে তাদের অনুপাত দাঁড়ায় ৩ঃ৫; ছোট সংখ্যাটি কত? সঠিক উত্তর ৩২ ধরি, ছোট সংখ্যাটি = ৪কবড় সংখ্যাটি = ৭কপ্রশ্নমতে,৪ক + ৪ঃ৭ক + ৪ = ৩ঃ৫বা, ২১ক + ১২ = ২০ক + ২০বা, ক = ৮ছোট সংখ্যাটি = ৪×৮ = ৩২
৪ঃ৬, ৫ঃ২, ও ১ঃ৩ এর মিশ্র অনুপাত কত?
Correct Answer:
খ: ১০ঃ১১
Present ages of Samad and Akmal are in the ratio of 5:4 respectively. three years later, the ratio of their ages will become 11:9 respectively. What is Akmal's present age in years?
Correct Answer:
A: 24
Explanation:
Present ages of Samad and Akmal are in the ratio of 5:4 respectively. three years later, the ratio of their ages will become 11:9 respectively. What is Akmal's present age in years? Correct Answer 24 ধরি, Samad এবং Akmal - এর বর্তমান বয়স যথাক্রমে 5x বছর এবং 4x বছর প্রশ্নমতে, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>5</mn><mi>x</mi><mo> + </mo><mn>3</mn></mrow><mrow><mn>4</mn><mi>x</mi><mo> + </mo><mn>3</mn></mrow></mfrac><mo> = </mo><mfrac><mn>11</mn><mn>9</mn></mfrac></math>⇒ 9(5x + 3) = 11 (4x + 3)⇒ 45x + 27 = 44x + 33⇒ x = 6 ⸫ Akmal - এর বর্তমান বয়স 4x = 4 × 6 বা 24 বছর।
In a 500 m race, the ratio of the speeds of two contestants Ajmal and Badal is 3:4. If Ajmal has a head start of 140 m then Ajmal wins by ---
Correct Answer:
B: 20 m
Explanation:
In a 500 m race, the ratio of the speeds of two contestants Ajmal and Badal is 3:4. If Ajmal has a head start of 140 m then Ajmal wins by --- Correct Answer 20 m Ajmal কে গন্তব্যে পোঁছাতে অতিক্রম করতে হয় (500 - 140) = 360 মিটারAjmal যখন 3 মিটার অতিক্রম করে Badal তখন অতিক্রম করে 4 মিটারAjmal " 360 " " " Badal " " " <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>4</mn><mo>&#xD7;</mo><mn>360</mn></mrow><mn>3</mn></mfrac><mo> = </mo><mn>480</mn></math> মিটারঅর্থাৎ Ajmal যখন 360 মিটার cover করে গন্তব্যে পোঁছে Badal তখন cover করে ৪৮০ মিটার।সুতরাং Ajmal জয়লাভ করে (500 - 480) = 20 মিটারে ।
যদি দুটি সংখ্যার অনুপাত ৪ঃ৩ হয়, তবে নিচের কোন সংখ্যাটি ঐ দুটি সংখ্যার সমান হতে পারে?
Correct Answer:
গ: ৩৫৭
Explanation:
যদি দুটি সংখ্যার অনুপাত ৪ঃ৩ হয়, তবে নিচের কোন সংখ্যাটি ঐ দুটি সংখ্যার সমান হতে পারে? সঠিক উত্তর ৩৫৭ বলা হয়েছে, দুটি সংখ্যার অনুপাত ৪ঃ৩। অনুপাতদ্বয়ের যোগফল ৪ + ৩ = ৭ এখন, সংখ্যা দুটির যোগফল অবশ্যই অনুপাত দুটির যোগফল দিয়ে নিঃশেষে বিভাজ্য হবে। অপশনগুলোর মধ্যে কেবল ৩৫৭ - ই ৭ দ্বারা বিভাজ্য হয়।
৭০ লিটার অকটেন-পেট্রোল মিশ্রণে পেট্রোল ও অকটেনের অনুপাত ৫ঃ২ । এই মিশ্রণে আর কত লিটার অকটেন মিশালে পেট্রোল ও অকটেনের অনুপাত ২ঃ১ হবে?
Correct Answer:
ক: ৫
Explanation:
৭০ লিটার অকটেন-পেট্রোল মিশ্রণে পেট্রোল ও অকটেনের অনুপাত ৫ঃ২ । এই মিশ্রণে আর কত লিটার অকটেন মিশালে পেট্রোল ও অকটেনের অনুপাত ২ঃ১ হবে? সঠিক উত্তর ৫ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> পেট্রোল ও অকটেনের আনুপাতিক মানের যোগফল (৫ + ২) = ৭<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> পেট্রোলের পরিমাণ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>&#x9ED;</mi><mi>&#x9E6;</mi><mo>&#xD7;</mo><mfrac><mi>&#x9EB;</mi><mi>&#x9ED;</mi></mfrac><mo> = </mo><mi>&#x9EB;</mi><mi>&#x9E6;</mi></math> লিটারএবং অকটেনের পরিমাণ (৭০ - ৫০) = ২০ লিটারধরি, ‘x’ লিটার অকটেন মিশালে পেট্রোল ও অকটেনের অনুপাত হবে ২:১প্রশ্নমতে, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>&#x9EB;</mi><mi>&#x9E6;</mi><mo>:</mo><mfenced><mrow><mi>&#x9E8;</mi><mi>&#x9E6;</mi><mo> + </mo><mi>x</mi></mrow></mfenced><mo> = </mo><mi>&#x9E8;</mi><mo>:</mo><mi>&#x9E7;</mi><mspace linebreak = "newline"/><mi>&#x9AC;</mi><mi>&#x9BE;</mi><mo>,</mo><mo>&#xA0;</mo><mfrac><mrow><mi>&#x9EB;</mi><mi>&#x9E6;</mi></mrow><mrow><mi>&#x9E8;</mi><mi>&#x9E6;</mi><mo> + </mo><mi>x</mi></mrow></mfrac><mo> = </mo><mfrac><mi>&#x9E8;</mi><mi>&#x9E7;</mi></mfrac><mspace linebreak = "newline"/><mi>&#x9AC;</mi><mi>&#x9BE;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x9EA;</mi><mi>&#x9E6;</mi><mo> + </mo><mi>&#x9E8;</mi><mi>x</mi><mo> = </mo><mi>&#x9EB;</mi><mi>&#x9E6;</mi><mspace linebreak = "newline"/><mi>&#x9AC;</mi><mi>&#x9BE;</mi><mo>,</mo><mo>&#xA0;</mo><mi>&#x9E8;</mi><mi>x</mi><mo> = </mo><mi>&#x9E7;</mi><mi>&#x9E6;</mi><mspace linebreak = "newline"/><mi>&#x9AC;</mi><mi>&#x9BE;</mi><mo>,</mo><mo>&#xA0;</mo><mi>x</mi><mo>&#xA0;</mo><mo> = </mo><mi>&#x9EB;</mi><mspace linebreak = "newline"/><mo>&#x2234;</mo></math> ৫ লিটার অকটেন মেশালে অনুপাত ২:১হবে।
In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2:3, then what percent of the population is literate?
Correct Answer:
D: 75%
Explanation:
In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2:3, then what percent of the population is literate? Correct Answer 75% Let, Adult = 100; Children = 150 So Ratio of literate = 60 + 85 × 1.5 or 127.5 Total = 60 + 127.5 = 187.5 In 250, literate = 187.5 So In 100, literate = 187.5×100250 = 75
Taka 1105 was divided among A, B and C. The amount of money received by A and B were in the ratio of 1:2. Amount of money received by B and C were in the ratio 3:4. How much money did A receive?
Correct Answer:
C: 195
Explanation:
Taka 1105 was divided among A, B and C. The amount of money received by A and B were in the ratio of 1:2. Amount of money received by B and C were in the ratio 3:4. How much money did A receive? Correct Answer 195 Hints: Given, A : B = 1 : 2 = 1× 3 : 2× 3 = 3 : 6 B : C = 3 : 4 = 3× 2 : 4 × 2 = 6 : 8 A : B : C = 3 :6 : 8 A'S amount = ( 3× 1105) /( 3 + 6 + 8) = 195 Tk.
একটি ত্রিভুজের তিনটি বাহুর মাপের অনুপাত ৫ঃ৬ঃ৭ । এর পরিসীমা ১৯৮ সেন্টিমিটার হলে দীর্ঘতম বাহুটি কত সেন্টিমিটার ?
Correct Answer:
ঘ: ৭৭ সেমি
Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number?
Correct Answer:
C: 50
Explanation:
Two numbers are in the ratio 5:4 and their difference is 10. What is the largest number? Correct Answer 50 Hints: ধরি, সংখ্যা দুটি 5x ও 4x 5x - 4x = 10 x = 10 বড় সংখ্যাটি = 5x = 5×10 = 50
An amount of Tk. 735 was divided between A, B and C. If each of them had received Tk 25 less, their shares would have been in the ratio of 1:3:2. The money received by C was :
Correct Answer:
C: Tk. 245
Explanation:
An amount of Tk. 735 was divided between A, B and C. If each of them had received Tk 25 less, their shares would have been in the ratio of 1:3:2. The money received by C was : Correct Answer Tk. 245 Hints: If each of them received Tk 25 less their total = 735 - 25× 3 = 660 Individual ratio amount = 660/(1 + 3 + 2) = 110 Share received by c = (110× 2) + 25 = 220 + 25 = 245
After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer?
Correct Answer:
B: 15
Explanation:
After taking 30 socks out of the dryer, Dina noticed that the ratio of blue socks to brown socks to black socks was 2:3:5. How many black socks were in the dryer? Correct Answer 15 Blue, brown এবং black মোজার আনুপাতিক মানের যোগফল (2 + 3 + 5) = 10so black মোজার সংখ্যা = 30×<math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>5</mn><mn>10</mn></mfrac></math> = 15 টি
A firm has sales of Tk. 750, total assets of Tk. 400, and a debt-equity ratio of 1.50. If the return on equity is 10%, what is the firm's net income?
Correct Answer:
A: Tk 16
Explanation:
A firm has sales of Tk. 750, total assets of Tk. 400, and a debt-equity ratio of 1.50. If the return on equity is 10%, what is the firm's net income? Correct Answer Tk 16 শ্রদ্ধা বা গুণমুদ্ধতা প্রকাশের জন্য কৃত কোনোকিছুকে Tribute বলা হয়।
A firm is having difficulty controlling its operating expenses. Which one of the following ratio categories will most directly reflect this problem?
Correct Answer:
B: profitability
Explanation:
A firm is having difficulty controlling its operating expenses. Which one of the following ratio categories will most directly reflect this problem? Correct Answer profitability সর্ববিধ রোগ নিরাময়কারী ওষধকে Panacea বলা হয়।
একটি ত্রিভুজের কোণগুলোর অনুপাত ১ঃ ২ঃ ৩ হলে ত্রিভুজটি হবে-
Correct Answer:
ক: সমকোণী
The ratio of ages of a father and his son was 5:1. What is the age of the son after five years, if the ratio of their ages is 3:1 by this time ?
Correct Answer:
B: 10
Explanation:
The ratio of ages of a father and his son was 5:1. What is the age of the son after five years, if the ratio of their ages is 3:1 by this time ? Correct Answer 10 যদি তুমি শহরের উত্তরের পাহাড়গুলোর দিকে ভ্রমণ কর তাহলে দেখবে যে, বিশাল স্মৃতিস্তম্ভ প্রাকৃতিক ভূ - দৃশ্যকে ছfড়িয়ে গেছে । অতএব, শূন্যস্থানে (d) dominating (ছাড়িয়ে যাওয়া) বসালে বাক্যের অর্থ সঠিক হয় ।
The ratio of girls to boys in a class is 3:4. The number of students in the class could be any of the following except :
Correct Answer:
B: 28
Explanation:
The ratio of girls to boys in a class is 3:4. The number of students in the class could be any of the following except : Correct Answer 28 অনুপাতের রাশিসমূহের যােগফল = 3 + 4 = 7 .option - এর সংখ্যাগুলাের মধ্যে 28, 7 দ্বারা বিভাজ্য। সুতরাং শ্রেণির ছাত্র - ছাত্রী সংখ্যা 28
The ratio of the number of boys and girls in a school is 3:2. If 20% of the boys and 25% of the girls are scholarship holders, what percent of the students are not scholarship holders?
Correct Answer:
C: 78
Explanation:
The ratio of the number of boys and girls in a school is 3:2. If 20% of the boys and 25% of the girls are scholarship holders, what percent of the students are not scholarship holders? Correct Answer 78 ধরি, ছাত্র সংখ্যা 3x এবং ছাত্রী সংখ্যা 2x বৃত্তিপ্রাপ্ত ছাত্র - ছাত্রীর সংখ্যা = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mn>3</mn><mi>x</mi><mo>&#xA0;</mo><mo>&#xD7;</mo><mo>&#xA0;</mo><mfrac><mn>20</mn><mn>100</mn></mfrac></mrow></mfenced><mo> + </mo><mo>&#xA0;</mo><mfenced><mrow><mn>2</mn><mi>x</mi><mo>&#xA0;</mo><mo>&#xD7;</mo><mfrac><mn>25</mn><mn>100</mn></mfrac></mrow></mfenced><mo>&#xA0;</mo><mo> = </mo><mfrac><mrow><mn>3</mn><mi>x</mi></mrow><mn>35</mn></mfrac><mo>&#xA0;</mo><mo> + </mo><mo>&#xA0;</mo><mfrac><mi>x</mi><mn>2</mn></mfrac><mo>&#xA0;</mo><mo> = </mo><mo>&#xA0;</mo><mfrac><mstyle displaystyle = "true"><mn>11</mn></mstyle><mstyle displaystyle = "true"><mn>10</mn></mstyle></mfrac></math>বৃত্তি পায়নি এমন ছাত্র ছাত্রীর সংখ্যা <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mn>5</mn><mi>x</mi><mo>&#xA0;</mo><mo>&#xD7;</mo><mo>&#xA0;</mo><mfrac><mrow><mn>11</mn><mi>x</mi></mrow><mn>10</mn></mfrac></mrow></mfenced><mo>&#xA0;</mo><mo> = </mo><mfrac><mrow><mn>39</mn><mi>x</mi></mrow><mn>10</mn></mfrac></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> শতকরা হার <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mfrac><mstyle displaystyle = "true"><mn>39</mn><mi>x</mi></mstyle><mstyle displaystyle = "true"><mfrac><mn>10</mn><mrow><mn>5</mn><mi>x</mi></mrow></mfrac></mstyle></mfrac><mo>&#xD7;</mo><mn>100</mn></mrow></mfenced></math> = 78
A jar contains only marbles of three colors : red, green and yellow. The red and green marbles are in the ratio of 2 : 5 and the yellow and red marbles are in ratio of 5 : 6. which of the following could be the total number of marbles?
Correct Answer:
A: 52
Explanation:
A jar contains only marbles of three colors : red, green and yellow. The red and green marbles are in the ratio of 2 : 5 and the yellow and red marbles are in ratio of 5 : 6. which of the following could be the total number of marbles? Correct Answer 52 Red : Green = 2 : 5 = 2 × 3 : 5 × 3 = 6 : 15 Yellow : Red = 5 : 6 Red : Green : Yellow = 6 : 15 : 5 অনুপাতের রাশিগুলোর সমষ্টি = 6 + 15 + 5 = 26 মার্বেলের মোট সংখ্যা হবে 26 বা তার গুণিতক সংখ্যক। অর্থাৎ, মার্বেলের সংখ্যা 26, 52, 78..... ইত্যাদি সংখ্যক।
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2?
Correct Answer:
B: 8
Explanation:
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2? Correct Answer 8 বাংলাদেশ ব্যাংকের কার্য়াবলির মধ্যে একটি উল্লেখযোগ্য কাজ হলো - দেশের ব্যাংকিং খাতের নিরাপত্তা, সুষ্ঠুতা এবং স্থিতিশীলতা বজায় রাখার লক্ষ্যে এবং ব্যাংকিং খাতের শৃঙ্খলা, গ্রাহকদের স্বার্থ সংরক্ষণ ও ব্যাংকিং ব্যবস্থায় তাদের আস্থা ধরে রাখার উদ্দেশ্যে সরেজমিন পরিদর্শন এবং রিপোর্ট ভিত্তিক পরিবীক্ষণের মাধ্যমে তালিকাভুক্ত ব্যাংক ও নন - ব্যাংক আর্থিক প্রতিষ্ঠানসমূহ পর্যবেক্ষণ ও তত্ত্বাবধান করা।
Three numbers are in the ratio of 3 : 4: 6 and their product is 1944. The largest of these numbers is ---
Correct Answer:
A: 18
Explanation:
Three numbers are in the ratio of 3 : 4: 6 and their product is 1944. The largest of these numbers is --- Correct Answer 18 "Say the numbers are 3x, 4x, and 6x .Product is multiplication so : 3x4x6x = 1944⇒72x3 = 1944⇒x3 = 27∴x = 3 So, the largest number = 6x = 6(3) = 18
A certain amount was divided between A and B in the ratio 4 : 3. If B's share was Tk. 4800, the total amount was:
Correct Answer:
A: Tk. 6400
Some marbles are divided between two brothers, Lipu and Tipu in a ratio of 15.8 and the difference in the number of marbles they get is 14. How many marbles did Tipu get?
Correct Answer:
D: 16
Explanation:
Some marbles are divided between two brothers, Lipu and Tipu in a ratio of 15.8 and the difference in the number of marbles they get is 14. How many marbles did Tipu get? Correct Answer 16 15x - 8x = 14 x = 2 8x = 16
The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?
Correct Answer:
B: 18 cm
Explanation:
The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle? Correct Answer 18 cm ধরি, আয়তক্ষেত্রের length এবং breadth যথাক্রমে x cm. এবং y cm.<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo><mi>A</mi><mi>r</mi><mi>e</mi><mi>a</mi><mo> = </mo><mfenced><mrow><mi>l</mi><mi>e</mi><mi>n</mi><mi>g</mi><mi>t</mi><mi>h</mi><mo>&#xD7;</mo><mi>b</mi><mi>r</mi><mi>e</mi><mi>a</mi><mi>d</mi><mi>t</mi><mi>h</mi></mrow></mfenced><mo> = </mo><mi>x</mi><mi>y</mi><mo>&#xA0;</mo><mi>c</mi><msup><mi>m</mi><mn>2</mn></msup><mspace linebreak = "newline"/><mo>&#x2234;</mo><mfrac><mrow><mi>P</mi><mi>e</mi><mi>r</mi><mi>i</mi><mi>m</mi><mi>e</mi><mi>t</mi><mi>e</mi><mi>r</mi></mrow><mrow><mi>B</mi><mi>r</mi><mi>e</mi><mi>a</mi><mi>d</mi><mi>t</mi><mi>h</mi></mrow></mfrac><mo> = </mo><mfrac><mn>5</mn><mn>1</mn></mfrac><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mfrac><mrow><mn>2</mn><mfenced><mrow><mi>x</mi><mo> + </mo><mi>y</mi></mrow></mfenced></mrow><mi>y</mi></mfrac><mo> = </mo><mfrac><mn>5</mn><mn>1</mn></mfrac><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mn>2</mn><mi>x</mi><mo> + </mo><mn>2</mn><mi>y</mi><mo> = </mo><mn>5</mn><mi>y</mi><mo>&#x21D2;</mo><mn>2</mn><mi>x</mi><mo> = </mo><mn>5</mn><mi>y</mi><mo> - </mo><mn>2</mn><mi>y</mi><mo> = </mo><mn>3</mn><mi>y</mi><mo>&#x21D2;</mo><mi>x</mi><mo> = </mo><mfrac><mrow><mn>3</mn><mi>y</mi></mrow><mn>2</mn></mfrac><mo> = </mo><mn>1</mn><mo>&#xB7;</mo><mn>5</mn><mi>y</mi><mo>&#x21D2;</mo><mn>3</mn><mi>y</mi><mo> = </mo><mn>2</mn><mi>x</mi><mo>&#x21D2;</mo><mi>y</mi><mo> = </mo><mfrac><mn>2</mn><mn>3</mn></mfrac><mi>x</mi><mspace linebreak = "newline"/><mo>&#x2234;</mo><mn>1</mn><mi>x</mi><mi>y</mi><mo> = </mo><mn>216</mn><mo>&#x21D2;</mo><mi>x</mi><mo>&#xB7;</mo><mfrac><mn>2</mn><mn>3</mn></mfrac><mi>x</mi><mo> = </mo><mn>216</mn><mo>&#x21D2;</mo><mn>2</mn><msup><mi>x</mi><mn>2</mn></msup><mo> = </mo><mn>3</mn><mo>&#xD7;</mo><mn>216</mn><mo>&#x21D2;</mo><msup><mi>x</mi><mn>2</mn></msup><mo> = </mo><mn>3</mn><mo>&#xD7;</mo><mn>108</mn><mo>&#x21D2;</mo><msup><mi>x</mi><mn>2</mn></msup><mo> = </mo><mn>324</mn><mspace linebreak = "newline"/><mo>&#x2234;</mo><mi>x</mi><msqrt><mn>324</mn></msqrt><mo> = </mo><mn>18</mn><mspace linebreak = "newline"/><mo>&#x2234;</mo><mi>L</mi><mi>e</mi><mi>n</mi><mi>g</mi><mi>t</mi><mi>h</mi><mo>&#xA0;</mo><mi>i</mi><mi>s</mi><mo>&#xA0;</mo><mn>18</mn><mo>&#xA0;</mo><mi>c</mi><mi>m</mi><mo>.</mo></math>
What is the ratio of the sum of the even positive integers between 1 and 100 (inclusive) and the sum of the odd positive integers between 100 and 150?
Correct Answer:
A: 102/125
If the length of rectangle B and the width of rectangle A is one-half the width of rectangle B, what is the ratio of the area of rectangle A to the area of rectangle B?
Correct Answer:
D: 2/1
Explanation:
If the length of rectangle B and the width of rectangle A is one-half the width of rectangle B, what is the ratio of the area of rectangle A to the area of rectangle B? Correct Answer 2/1 Let length of rectangle B be L and width be HSo, for rectangle A, length = L/2 and width = H/2So, area of A/area of B = (L/2*H/2)/L*H = 1/4
The ratio of income of a to that of B is 7:5 and the expenditure of A to that of B is 3:2. If , at the end of the year , each saves tk.500, find the income of A.
Correct Answer:
B: tk.3000
Explanation:
The ratio of income of a to that of B is 7:5 and the expenditure of A to that of B is 3:2. If , at the end of the year , each saves tk.500, find the income of A. Correct Answer tk.3000 ধরি, A এর আয় 7x এবং ব্যয় 3y B এর আয় 5x এবং ব্যয় 2y 7x - 3y = 500........ (1) 5x - 2y = 500.......(2) 7x - 3y = 5x - 2y 2x = y (1) 7x - ( 3 × 2x) = 500 x = 500 A এর আয় = ( 7 × 500) = 3500
There is a rectanguler parking lot with a length of 2x and a width of x. What is the ratio of the perimetr of the parking lot of the rea of the parking lot to the area of the parking lot,
Correct Answer:
A: 2/x
Explanation:
There is a rectanguler parking lot with a length of 2x and a width of x. What is the ratio of the perimetr of the parking lot of the rea of the parking lot to the area of the parking lot, Correct Answer 2/x আয়তাকার Parking lot এর ক্ষেত্রফল ( 2x × x) বর্গ একক = 2x2 বর্গ একক এবং, পরিসীমা = 2 ( 2x + x) একক = 6x একক পরিসীমা : ক্ষেত্রফল = 6x : 2x2 = 6x /2x2 = 3/x