Explanation:

40% of 200 is what percent of 160? Correct Answer 50 X% o 160 = 40% of 200 or,  X = 40 x 200 / 160 = 50 So, 50% of 160 is equal to 40% of 200.

Explanation:

If 40% of the workers are graduate, and of them 15% are male, what percent of the workers are male and graduare? Correct Answer 6% Graduate workers = 40% of all workers Male graduate workers = 15% of graduate workers = 15% of (40% of all workers) = (15/100) of 40% of all workers = 6% of all workers

Explanation:

90 কোন সংখ্যার 75%? সঠিক উত্তর 120 x এর ৭৫% = ৯০x এর ৭৫/১০০ = ৯০৭৫x = ৯০০০x = ৯০০০ ÷ ৭৫x = ১২০

Explanation:

কোন পন্যের পুর্বমূল্যঃ বর্তমান মূল্য = ৫ঃ৭ হলে শতকরা মূল্য বৃদ্ধির পরিমাণ কত? সঠিক উত্তর ৪০% মূল্যের অনুপাতের পারথক্য = ৭ - ৫ = ২ সুতরাং,শতকরা মূল্য বৃদ্ধি = (২/৫)X১০০ = ৪০%

Explanation:

If the length of a rectangle is increased by 40% and the width is decreased by 20%, the area of the rectangle will increase by? Correct Answer 12% Let the initial length and width be L & W respectively. Then, initial area = L x W Length after 40% increament = 1.4L Width after 20% decreament = 0.8W New area = 1.4L x 0.8W = 1.12 (L x W) So, area will increase by 12%. [Shortcut:  ( + 40) + ( - 20) + ( + 40)x( - 20)/100 =   + 12%]

Explanation:

কোন পরীক্ষায় পরীক্ষার্থী ৮০% গণিত এবং ৭০% বাংলায় পাস করল। উভয় বিষয়ে পাস করল ৬০% উভয় বিষয়ে শতকরা কতজন ফেল করল? সঠিক উত্তর ১০% একমাত্র গণিতে পাস করেছে (৮০ - ৬০)% = ২০% একমাত্র বাংলাতে পাস করেছে (৭০ - ৬০)% = ১০% মোট পাস = (৬০ + ২০ + ১০)% = ৯০% উভয় বিষয় ফেল = (১০০ - ৯০)% = ১০%

Explanation:

চালের দাম ২৫% বেড়ে যাওযায় এক ব্যক্তি চালের ব্যবহার এমনভাবে কমালেন যেন তার বাৎসারিক ব্যয় অপরিবর্তিত থাকে। তিনি চালের ব্যবহার শতকরা কত ভাগ কমালেন? সঠিক উত্তর ২০% ধরি, চালের পূর্ব মূল্য ১০০ টাকা " বর্তমান " ১২৫ টাকা তাহলে ব্যয় অপরিবর্তীত রাখতে, ১২৫ টাকার স্থলে ব্যবহার করবে ১০০ টাকার চাল ১ " " " " ১০০/১২৫ " ১০০ " " " " ১০০×১০০/১২৫ " = ৮০ টাকার চাল ব্যবহার কমাবে (১০০ - ৮০) বা ২০%

Explanation:

চালের দাম ২৫ ভাগ বেড়ে যাওয়ার এক ব্যক্তি চালের ব্যবহার এমনভাবে কমালো যেন তার সাংসারিক ব্যয় অপরিবর্তিত থাকে। তিনি চালের ব্যবহার শতকরা কত কমালেন? সঠিক উত্তর ২০% ধরি, চালের পূর্ব মূল্য ১০০ টাকা " বর্তমান " ১২৫ টাকা তাহলে ব্যয় অপরিবর্তীত রাখতে, ১২৫ টাকার স্থলে ব্যবহার করবে ১০০ টাকার চাল ১ " " " " ১০০/১২৫ " ১০০ " " " " ১০০×১০০/১২৫ " = ৮০ টাকার চাল ব্যবহার কমাবে (১০০ - ৮০) বা ২০%।

Explanation:

A 60-gallon tank is 60% full of water. If 50% of the water is poured in a 90-gallon tank, what percent of the 40-gallon tank is filled? Correct Answer 20 quantity of water in 60g tank = 60x60% = 36g. water pured in 90g tank = 36x50% = 18g. percentage filled = 18*100/90 = 20% ans:20%

Explanation:

The XYZ Corporation sells pens, pencils, and erasers. The pens make up 2/5 of all sales, the pencils 1/10 of pens and the erasers 1/2 of pens and pencils together. What percentage of all sales is for eraser? Correct Answer 22% Percentage of pen sales = 2/5 x 100% = 40% of all sales Percentage of pencil sales = 1/10 of 40% = 4% of all sales Percentage of eraser sales = 1/2 of (40 + 4)% = 22%  of all sales.

Explanation:

Three individuals contributed Tk. 8000.00 each toward the purchase of a computer. If they bought the computer on sale for Tk. 19,500.00 plus 10 percent sales tax, how much money should be refunded to each individual? Correct Answer Tk. 850 Total contribution = 3 x 8000 = 24000 TK Cost of computer = 19500 + 10% of 19500 = 19500 + 1950 = 21450 TK. Excess contribution = 24000 - 21450 = 2550 TK. Refund to each = 2550/3 = 850 TK.

Explanation:

In a class of 120 students, 60 percent can speak French and the rest can speak only English. If 25 percent of those in the class who can speak French can also speak English, how many of the students in the class can speak English? Correct Answer 66 Number of  French speaking students = 60% of 120 = 72 Number of students speaking both French and English = 25% of 72 = 18 Number of students who speaks only English = 120 - 72 = 48 Total number of English speaking students = 48 + 18 =  66

Explanation:

An employer pays 3 workers X, Y, and Z a total of Tk. 36,600.00 a week. X's paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week? Correct Answer 12,000 X = 125/100 of Y    or,  Y = 100X/125 = 4X/5 Again,  X = 80/100 of  Z    or,  Z = 100X/80 = 5X/4 Now,  X + Y + Z = 36600 or,  X + 4X/5 + 5X/4 = 36600 or,  (20X + 16X + 25X) / 20 = 36600 or,  61X = 20 x 36600 So,  X = 12000 TK.

Explanation:

Two blends of tea costing $2.80 and $3.20 per kg respectively are mixed in the proportion 2 : 3. The mixture is sold at $4.80 per kg. What is the percentage of profit? Correct Answer 57.9 Let the amount of tea blends be 2T and 3T respectively. Then total cost  = 2T x $2.8 + 3T x $3.2 = $15.2T Total sell = (3T + 2T) x $4.8 = $24T So, profit = (24T - 15.2T) / 15.2T x 100% = 57.9%

Explanation:

কোনো ক্লাসে চল্লিশ জন ছাত্রের মধ্যে ২৪ জন পাশ করল। ঐ ক্লাসে শতকরা ছাত্র পাশ করতে পারেনি? সঠিক উত্তর ৪০% পাশ করতে পারেনি = ৪০ - ২৪ = ১৬ জন পাশ না করার শতকরা হার = (১৬/৪০) x ১০০ = ৪০%

Explanation:

একটি বর্গক্ষেত্রের প্রতিটি বাহুর দৈর্ঘ্য ২০% বৃদ্ধি করলে ক্ষেত্রফল শতকরা কতটুকু বৃদ্ধি পাবে? সঠিক উত্তর ৪৪% Let, one side of Rectangular is 100 mThe other side of Rectangular is 200 mSo, Present Area is = 100X200=20000 m2if increase 20% of both side of rectangular.Then, one side of Rectangular is= 100 +100×20100 = 120 m          Other side of Rectangular is = 200 + 200×20100= 240 mAfter increasing the Rectangular area is = 120× 240 = 28800 m2increasing the Rectangular area is = 28800 - 20000 = 8800 m2So, % of increasing area is = 8800×10020000= 44%Ans: 44%.

Explanation:

কোন পরীক্ষায় ৭০% পরীক্ষার্থী গণিত এবং ৫০% পরীক্ষার্থী বাংলায় পাশ করল। যদি উভয় বিষয়ে ৪০% পরীক্ষার্থী পাশ করে থাকে তবে শতকরা কতজন উভয় বিষয়ে ফেল করল? সঠিক উত্তর ২০ উভয় বিষয়ে ফেল x হলে, ১০০% = ৭০% + ৫০% - ৪০% + x = > x = ১৪০% - ১২০% ∴ x = ২০%

Explanation:

If the length of a rectangular is increased by 20% and the width is decreased by 20% then the area. Correct Answer decreases by 4% let L = the original length and W = the original width; thus, the original area of the rectangle is LW and the new area is 1.2L x 0.8W = 0.96LW, so the area is decreased by = (LW - 0.96LW)/LW x 100% = 4%. ans: decreased  by 4%

Explanation:

একটি সংখ্যা থেকে সংখ্যাটির ৪০% বিয়োগ করলে ৩০ থাকে। সংখ্যাটি কত? সঠিক উত্তর ৫০ ধরি, সংখ্যাটি ক। তাহলে,   ক - (৪০/১০০) ক = ৩০ বা,  ক - ০.৪ক = ৩০ বা,  ০.৬ক = ৩০ বা,   ক = ৩০/০.৬ =  ৫০

Explanation:

A circular flower bed has diameter 4m. The flower bed is increased so that the diameter is now 12m. How many times larger is the new flower bed? Correct Answer 9 In case of a circle, Area ∝ (diameter)2 So,   A2/A1  = d22/d12 or,  A2 = d22/d12 x A1                 = 122/42 x A1                 =  9 A1

Explanation:

Increasing the original price of an item by 15 percent and then increasing the new price by another 15 percent is equivalent to increasing the original price by Correct Answer 32.25% Let the original price be P. Now, the new price after increasing the original price by 15% = 1.15P The final price after increasing the new price by another 15% = 1.15x1.15P = 1.3225P. So, actual increament in the original price = {1.322P - P) / P} x 100 = 32.25% [Shortcut: + 15 + 15 + (15x15)/100  = 32.25%]

Explanation:

You can now buy 5 more Mangoes with TK. 75 due to the reduction in price by 20 percent Calculate the current price of one dozen of Mangoes. Correct Answer 36 Let Previous price of a mango was tk x So, current price of a mango is x(80%) or tk 4x/5 ATO, 75/(4x/5) = 75/x + 5 = > 20x + 300 = 375 = > x = 15/4 So, the current price of dozen of mango is 12 x 4/5 x 15/4 or tk 36.

Explanation:

What is the percentage equivalent to 4.5 ? Correct Answer 450% According to Question,      x% = 4.5⇒ x100=4.5⇒ x = 450Ans: 450%

Explanation:

১৪৪ কোন সংখ্যার ৪০% ? সঠিক উত্তর ৩৬০ (ব্যাখ্যাঃ) ধরি, আসল = ৫টাকা . ′ . সুদ = ৫এর ১/৫টাকা = ১টাকা ১০০ × ১ . ′ . সুদের হার = – – – - - - - - - - % = ২০% ১ × ৫

Explanation:

In an examination, there are 1000 boys and 800 girls, 60% of boys and 40% girls passed. The percentage of candidates that failed is --- Correct Answer 48.88 Hints - 1000 জন boys এর 60% = 600 জন। 800 জন girls এর 40% = 320 জন। (1000 + 800) বা 1800 জন এর মধ্যে পাস করে ( 600 + 320) বা 920 জন। Fail করে = ( 1800 - 920 ) বা 880 জন। Persentage failed = 880/1800 × 100% = 48.88%

Explanation:

If 12% of x is equal to 6% of y, then 18% of x will be equal to how much percent of y? Correct Answer 9% Hints - এই ধরনের math অনুপাত দিয়ে করা যায়। 12/18 = 6/? বা, ? = 6 × 18 / 12 = 9%.

Explanation:

Salary of an officer increases every year by 20%. His salary in the year 2001 was Tk. 26640. What was his salary in 1999? Correct Answer Tk. 18500 let the salary in 1999 was x. In 2000 the salary will be 6x/5. in 2001 the salary will be [6x/5] + [6x/5][1/5] = 36x/25 now 36x/25 = 26,640 x = 18500 tk (ans)

Explanation:

30 টাকা 75 টাকার শতকরা কত ? সঠিক উত্তর 40% 30/75*100 = 40%

Explanation:

A number when increased by 25% gives 80. The number is- Correct Answer 64 125% ≡ 80 So, 100% ≡ 80 x 100 / 125 = 64

Explanation:

The ratio of boys and girls in a class is 3 : 2. If 10% of boys and 15% of girls failed in an examination, the percentage of passed students is : Correct Answer 88% Let the number of boys and girls be 3x and 2x respectively. Total students = 3x + 2x = 5x Number of boys failed = 10% of 3x = 0.3x So, Number of boys passed = 3x - 0.3x = 2.7x Number of girls failed = 15% of 2x = 0.3x So, number of girls passed = 2x - 0.3x = 1.7x Total students passed = 2.7x + 1.7x = 4.4x Percentage of passed students = 4.4x / 5x  x 100% = 88%

Explanation:

The average age of 4 brothers is 6 years. If the age of their father is included, the average is increased by 5 years. Find the age of the father. Correct Answer 31 years Total age of the 4 brothers = 4 x 6 = 24 years New average = 6 + 5 = 11 Now, total of their ages including their father's = 5 x 11 = 55 Age of the father = 55 - 24 = 31 years

Explanation:

In a class of 120 students. 60 percent can speak French and the rest can speak English only. If 25 percent of those in the class who can speak French can also speak English, how many of the students in the class can speak English? Correct Answer 66 We notice that 120 x 0.6 = 72 students speak French and 120 - 72 = 48 students speak only English. Among the 72 students who speak French, 72 x 0.25 = 18 students speak English as well. Therefore, 48 + 18 = 66 students can speak English. ans: 66

Explanation:

আরিফ তার বেতনের ২০% বাড়ি ভাড়া বাবদ ব্যয় করল এবং খাদ্য কেনার জন্য অবশিষ্ট টাকার ২০% ব্যয় করল। এই খরচ করার পর আরিফের কাছে যদি ৩২০০ টাকা থাকে তবে আরিফের মাসিক বেতন কত টাকা? সঠিক উত্তর ৫০০০ খাদ্যে ব্যয় = (১০০ - ২০) বা ৮০% এর ২০% = ১৬% অবশিষ্ট থাকে = ১০০ - (২০ + ১৬) = ৬৪% এখন, বেতনের ৬৪% = ৩২০০ টাকা বেতনের ১০০% = ৩২০০ x ১০০ / ৬৪ = ৫০০০ টাকা

Explanation:

The salary of an employee is first decreased by 10% and then is increased by 25%. Find percent increase in his salary from the original salary. Correct Answer 12.5% Let the original salary be S. Salary after 10% decrease = 0.9S Final salary after 25% increase = 1.25 x 0.9S = 1.125S Increment = 1.125S - S = 0.125S = 12.5% of S

Explanation:

A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of meal then the total amount paid have been between --- Correct Answer Tk 39 and Tk 41 at 10% tip Tip = 10% of 35.50 = 3.55 TOTAL AMOUNT ≈ 35.50 + 3.55 ≈  39.05 at 15% tip Tip = 15% of35.50 = 3.55 + 1.77 = 5.32 TOTAL AMOUNT ≈ 35.50 + 5.32 ≈  40.82 So, the TOTAL cost will be between $39 and $41

Explanation:

Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by -- Correct Answer 32.25% Initial Price = 100 tk 15% increase = 115 tk Again 15% increase on new price = 115 + (115∗15/100) = 115 + 117.25 = 132.25 tk Percentage Increase = 132.25 - 100 = 32.25 ans:  32.25%

Explanation:

কোনো পরীক্ষায় ৭০% পরীক্ষার্থী গণিত এবং ৬০% পরীক্ষার্থী বাংলায় পাশ করল। যদি উভয় বিষয়ে ৫০% পরীক্ষার্থী পাশ করে থাকে, তবে শতকরা কতজন উভয় বিষয়ে ফেল করল? সঠিক উত্তর ২০ একমাত্র গণিতে পাস করেছে (৭০ - ৬০)% = ১০% একমাত্র বাংলাতে পাস করেছে (৬০ - ৫০)% = ১০% মোট পাস = (৬০ + ১০ + ১০)% = ৮০% উভয় বিষয় ফেল = (১০০ - ৮০)% = ২০%।

Explanation:

What is the percentage of shareholding of Government of Bangladesh in BASIC Bank ltd.? Correct Answer 100% At the outset, the Bank started as a joint venture enterprise of the BCC Foundation with 70 percent shares and the Government of Bangladesh (GOB) with the remaining 30 percent shares.

Explanation:

'C' is the midpoint of the line segment AE. Points B and D are on the line segment AE so that AB=BC and CD=DE, what percentage of AC is AD? Correct Answer 150 Here, B is the midpoint of AC and D is the midpoint of CD. So, AB = BC = CD = DE Now,  AC = AB + BC = 2AB And,   AD = AB + BC + CD = 3AB = 3/2 x 2AB = 3/2 AC So, AD = 3/2 x 100% of AC = 150% of AC.

Explanation:

After scoring 85 runs in the 17th innings, a batsman's average run increases by 3. What was his average before the 17th? Correct Answer 34 runs Let the initial average be A. ATQ,  16 x A + 85 = 17 x (A + 3) or,  16A + 85 = 17A + 51 or, 17A - 16A = 85 - 51 or,  A =  34 runs

Explanation:

A's income is 50% less than B's . By how much percent, B's income is more than A's? Correct Answer 100%  Let's B's income = 100  A's income = 50. Required % = (100 - 50)/50 × 100 = 100% ans:100%

Explanation:

what percent of 2/5 is 1/25 ? Correct Answer 10 <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>10</mn><mo>%</mo><mo> </mo><mi>o</mi><mi>f</mi><mo> </mo><mfrac><mn>2</mn><mn>5</mn></mfrac><mspace linebreak="newline"/><mo>=</mo><mo> </mo><mfrac><mn>2</mn><mn>5</mn></mfrac><mo>×</mo><mfrac><mn>10</mn><mn>100</mn></mfrac><mspace linebreak="newline"/><mo>=</mo><mfrac><mn>1</mn><mrow><mn>2</mn><mn>5</mn></mrow></mfrac><mo> </mo><mo> </mo></math>Ans. 10%

Explanation:

A school has a total enrollment of 90 students. There are 30 students taking physics, 25 taking English, and 13 taking both. What percentage of the students is taking either physics or English? Correct Answer 47 % 30 + 25 - 13 = 42So, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>42</mn><mn>90</mn></mfrac><mo>×</mo><mn>100</mn></math> = 46.6 = 47%

Explanation:

During 2011, advertising expenditures on canned food products increased by 20 percent, while canned food consumption rose by 25 percent. Each of the following if true, could help to explain the increase in food consumption EXCEPT- Correct Answer Can opener production doubled This does not help, it’s not related.

Explanation:

If 'basis points' are defined so that 1 percent equal to 100 basis points,than 82.5 percent is how many basis points greater than 62.5percent ? Correct Answer 2000 Difference = 82.5 - 62.5 = 20 percent Now,  1 percent = 100 points So,  20 percent = 100×20 = 2000 points

Explanation:

Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries? Correct Answer 20% let, Total number of accidents is 100 given, 25% of of serious bicycle accidents involved head injury and 80% head injuries are fatal So,percentage of serious bicycle accidents involve fatal head injuries = 80% * 25% *100                                                                       = (80/100) *(25/100)*100 = 20 ans: 20%

Explanation:

If a's income is 25% less than of B, then how much percent is B's income more than that of A? Correct Answer 33 1/3% যদি B এর income 100 হয় তবে A এর income 75<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>∴</mo><mi>B</mi><mo> </mo><mi>i</mi><mi>n</mi><mi>c</mi><mi>o</mi><mi>m</mi><mi>e</mi><mo> </mo><mi>g</mi><mi>r</mi><mi>e</mi><mi>a</mi><mi>t</mi><mi>e</mi><mi>r</mi><mo> </mo><mo> = </mo><mo> </mo><mfrac><mrow><mn>100</mn><mo>×</mo><mn>25</mn></mrow><mn>75</mn></mfrac><mo> = </mo><mn>33</mn><mo>.</mo><mn>33</mn><mo>%</mo></math>

Explanation:

In school election ,with three candidates zara received 120votes.mamun receive 50vote and Humayura received 30votes.What percentage of total number of vote did Zara received? Correct Answer 60% Given, zara received 120votes. mamun received 50vote  and Humayura received 30votes. total votes = 120 + 50 + 30 = 200 percentage of total votes Zara received = (120*100)/200 = 60 ans: 60%

Explanation:

The bengal soap powder is packed in cube shaped cartons. A carton measure 10cm each side.The company decide to increase the edge of box 10% .How much does the volume increase? Correct Answer 331 Initial volume = 103 = 1000 cc New edge = 10 + 10% of 10 = 10 + 1 = 11 cm New volume = 113 = 1331 cc Volume increament = 1331 - 1000 = 331 cc