Percentage MCQs
Showing 50 questions (Total: 1245)
If the price of an item increases from TK. 25 to Tk. 28 , the old price is what % of the new price?
Correct Answer:
C: 89.29%
Explanation:
If the price of an item increases from TK. 25 to Tk. 28 , the old price is what % of the new price? Correct Answer 89.29% ধরি, x% তাহলে 25 = x% of 28 = x100 of 28 so x = 25×10028 = 89.29%
The radius of a circle is increased by 10% , then the area is increased by what percent?
Correct Answer:
C: 21%
Explanation:
The radius of a circle is increased by 10% , then the area is increased by what percent? Correct Answer 21% প্রথম ক্ষেত্রে radius r হলে area = πr2 দ্বিতীয় ক্ষেত্রে radius = r + .10r = 1.1r এবং ক্ষেত্রফল = π(1.1r)2 = 1.21 πr2 অর্থাৎ 21% বৃদ্ধি হয়েছে।
The length of a rectangle is 18 cm and its breadth is 10 cm, When the length is increased to 25 cm, what will be the breadth of the rectangle if the area remains the same?
Correct Answer:
C: 7.2 cm
Explanation:
The length of a rectangle is 18 cm and its breadth is 10 cm, When the length is increased to 25 cm, what will be the breadth of the rectangle if the area remains the same? Correct Answer 7.2 cm The length is increased from 18 cm to 25 cm. but the area remains same. Let, new breadth is 'x' So, old area = new area 18×10 = 25 × x x = 180/25 x = 7.2
কোনো পরীক্ষায় মোট পরীক্ষার্থীর ৮০% গণিত এবং ৭০% বাংলায় পাস করলো। উভয় বিষয়ে পাস করলো ৬০%, উভয় বিষয়ে শতকরা কতজন ফেল করলো?
Correct Answer:
খ: ১০%
Explanation:
কোনো পরীক্ষায় মোট পরীক্ষার্থীর ৮০% গণিত এবং ৭০% বাংলায় পাস করলো। উভয় বিষয়ে পাস করলো ৬০%, উভয় বিষয়ে শতকরা কতজন ফেল করলো? সঠিক উত্তর ১০% দেওয়া আছে, উভয় বিষয়ে পাশ করেছে ৬০%,গণিতে পাশ করেছে ৮০% এবং বাংলায় পাশ করেছে ৭০%অর্থাৎ এককভাবে গনিতে পাশ করছে=(৮০% - ৬০%) = ২০%আবার, এককভাবে বাংলায় পাশ করেছে = (৭০% - ৬০%) = ১০%মোট পাশ করেছে = (৬০% + ২০% + ১০%) = ৯০%উভয় বিষয়ে ফেল করেছে = (১০০% - ৯০%) = ১০%
The difference between a number and its two-fifth is 510. What is 10 percent of that number?
Correct Answer:
B: 85
Explanation:
The difference between a number and its two-fifth is 510. What is 10 percent of that number? Correct Answer 85 Hints: Let the number be x Then, x - 2x/5 = 510 (5x - 2x) /5 = 510 3x = 510×5 x = 850 So, 10% of 850 = 85
If 35% of a number is 175, then what percent of 175 is that number?
Correct Answer:
D: None of these
Explanation:
If 35% of a number is 175, then what percent of 175 is that number? Correct Answer None of these Hints: Let the number be x 35% of x = 175 (35/100) × x = 175 x = 500 Let, y% of 175 = 500 ( y/100) ×175 = 500 y = 285.714286 So, 285%
An article is sold at a certain price. By selling it at 2/3 of that price one loses 10%. Find the gain percent at original price.
Correct Answer:
C: 35%
Explanation:
An article is sold at a certain price. By selling it at 2/3 of that price one loses 10%. Find the gain percent at original price. Correct Answer 35% Hints: Original selling price be x, new S.P = 2/3 of x = 2x/3 Here, Loss = 10% CP = 100/(100 - loss) × SP = 100/(100 - 10) × 2x/ 3 = 100/90 × 2x/3 = 20x/27 Gain = x - (20x/27) = 7x/27 Gain % = (7x/27) / (20x/27) × 100% = 35%
What percentage of numbers from 1 to 80 has 0 or 5 in the unit's digit?
Correct Answer:
C: 20%
Explanation:
What percentage of numbers from 1 to 80 has 0 or 5 in the unit's digit? Correct Answer 20% There are numbers from 1 to 80 those have 0 or 5 in the units digit out of 80 numbers. So, the percentage = 16/80 ×100% = 20%
If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz?
Correct Answer:
C: 37%
Explanation:
If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz? Correct Answer 37% w is 10% less than x i.e 90% of x = . 90x similarly y = . 70z wy = . 90x ×. 70z = . 63xz ( 100 - 63) = 37% less
A company generated revenue of Tk. 125,000 in 2012 which was 12.5% of its gross revenue. In 2013, the gross revenue increased by Tk. 250,000. What is the percentage increase in the revenue in 2013?
Correct Answer:
C: 25%
Explanation:
A company generated revenue of Tk. 125,000 in 2012 which was 12.5% of its gross revenue. In 2013, the gross revenue increased by Tk. 250,000. What is the percentage increase in the revenue in 2013? Correct Answer 25% 12% of gross rev = 125000 .125 × gross rev. = 125000 gross rev = 125000/.125 = 1000000 In 2013, gross rev = 1000000 + 250000 = 1250000 12.5% of 1250000 = 156250 % increase in rev. = ( 156250 - 1250000)/125000 ×100% = 25%
A manufacturer sells three products i.e. A, B and C. Product A cost 200 and sells for 250, Product B costs 150 and sells for 180, Product C costs 100 and sells for 110. On which product, he has maximum percentage of profit?
Correct Answer:
C: A only
If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum of the areas of the three plots increased?
Correct Answer:
D: 375%
The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by?
Correct Answer:
C: 82%
When the diameter of a circle is tripled, the area of the circle will be increased by ---
Correct Answer:
C: 9 times
Explanation:
When the diameter of a circle is tripled, the area of the circle will be increased by --- Correct Answer 9 times কোন বৃত্তের ব্যাস ( diameter) 3 গুন বৃদ্ধি করলে ক্ষেত্রফল বৃদ্ধি পাবে ( 3) 2 = 9 গুন।
একটি বইয়ের মূল্য ২৪ টাকা, যা প্রকৃত মূল্যের ৮০%। বাকী মূল্য সরকার ভর্তুকির দিলে তার পরিমাণ কত?
Correct Answer:
ক: ৬ টাকা
The sum of two numbers is 28/25 of the first number. The second number is what percent of the first ?
Correct Answer:
A: 12%
Explanation:
The sum of two numbers is 28/25 of the first number. The second number is what percent of the first ? Correct Answer 12% Hints : Let the numbers be x and y x + y = 28/25 × x y = 28x /25 - x y = 28x - 25x /25 y = 3x /25 So the second number is 3x /25 Now, percentage = 3x/25/x × 100 = 3x/25 × 1/x × 100% = 12%
The price of a certain DVD is discounted by 10% and the reduced price is then discounted by another 10%. This series of successive discounts is equivalent to a single discount of :
Correct Answer:
B: 19%
If each side of a rectangle is increased by 50%, its area will increase by
Correct Answer:
B: 125%
Explanation:
If each side of a rectangle is increased by 50%, its area will increase by Correct Answer 125% ক্ষেত্রফল বৃদ্ধি পাবে [ 50 + 50 + ( 50×50 /100) ] % = 125%
Maxwell Company's return on equity was 18% and the financial leverage percentage was 13% (positive). Return on assets was :
Correct Answer:
D: 5%
The average age of 8 men is increased by 2 years when one of them whose age is 24 years is replaced by a woman. What is the age of the woman ?
Correct Answer:
D: 40 years
Explanation:
The average age of 8 men is increased by 2 years when one of them whose age is 24 years is replaced by a woman. What is the age of the woman ? Correct Answer 40 years মহিলাটির বয়স = 8 × 2 + 24 = 16 + 24 = 40 বছর
A sum of Tk. 600 amounts to Tk. 720 in 4 years at Simple Interest. What will it amount to if the rate of interest is increased by 2% ?
Correct Answer:
B: Tk.768
Explanation:
A sum of Tk. 600 amounts to Tk. 720 in 4 years at Simple Interest. What will it amount to if the rate of interest is increased by 2% ? Correct Answer Tk.768 এখানে, I = 720 - 600 = 120 r = 120× 100 / 600 × 4 = 5% 2% বৃদ্ধিতে মুনাফার হার ( 5 + 2) % = 7% I = 600 × 7/100 × 4 = 168 মুনাফা - আসল = 600 + 168 = 768
1/2 is what percent of 1/3?
Correct Answer:
B: 150%
Explanation:
1/2 is what percent of 1/3? Correct Answer 150% "ধরি, 13 এর x% = 12 বা, 13 × x100 = 12 বা, x = 3 × 1002 ∴ x = 150 ∴ 13 এর 150% এর মান 12
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is :
Correct Answer:
D: 28%
Explanation:
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is : Correct Answer 28% ধরি, towel এর দৈর্ঘ x এবং towel এর প্রস্থ y Towel এর দৈর্ঘ কমে হয় ( x - 20x/100) = 4x/5 একক Towel এর প্রস্থ কমে হয় ( y - 10y/100) = 9y/10 একক ক্ষেত্রফল = 4x/4 × 9y/10 বর্গ একক = 18xy/25 বর্গ একক ক্ষেত্রফল হ্রাসের হার = ( xy - 18xy/35/ xy × 100) % = 28%
The radius of a circle is increased by 10%, Then the area is increased by what percent?
Correct Answer:
C: 21%
If 'n' is a positive number, 70% of 'n' is what percent of 700n?
Correct Answer:
B: 0.1%
A shirt was marked down 20% the first week and another 20% the next week. What percent of the regular price was the final cost of the shirt after two markdowns?
Correct Answer:
B: 36%
In a bank 30% of the applicants are from rajshahi district and 20% of them from Rajshahi city. What percentage of the total applicants are from Rajshahi city?
Correct Answer:
B: 6%
If the price of an item is increased by 10% and then decreased by 10%, the net effect on the price of the item is
Correct Answer:
D: A decrease of 10%
A national issue was won by a vote of 9 to 6. What part of the total vote was against the issue?
Correct Answer:
B: 2/5
একটি স্কুলে ৬০০ জন ছাত্র-ছাত্রীর মধ্যে প্রত্যেক হয় ইংরেজি বা বাংলা অথবা উভয় বিষয় নিয়েছিল। যদি ৭৫% ইংরেজি এবং ৪৫% বাংলা নেয় তবে কতজন উভয় বিষয় নিয়েছিলো?
Correct Answer:
ঘ: ১২০
Explanation:
একটি স্কুলে ৬০০ জন ছাত্র-ছাত্রীর মধ্যে প্রত্যেক হয় ইংরেজি বা বাংলা অথবা উভয় বিষয় নিয়েছিল। যদি ৭৫% ইংরেজি এবং ৪৫% বাংলা নেয় তবে কতজন উভয় বিষয় নিয়েছিলো? সঠিক উত্তর ১২০ ইংরেজি নেয় ( ৬০০ এর ৭৫/১০০) জন = ৪৫০ জন বাংলা নেয় = ( ৬০০ এর ৪৫/১০০) = ২৭০ জন ধরি, উভয় বিষয় নেয় x জন। ধরি, n ( E u B) = n(E) + n( B) - n( E n B) ৬০০ = ৪৫০ + ২৭০ - x x = ৭২০ - ৬০০ x = ১২০
২০% মূল্যহ্রাসের কারনে একটি ক্যালকুলেটর ১০ডলার বিক্রি হলে প্রকৃত মূল্য-
Correct Answer:
খ: ১২.৫ ডলার
Explanation:
২০% মূল্যহ্রাসের কারনে একটি ক্যালকুলেটর ১০ডলার বিক্রি হলে প্রকৃত মূল্য- সঠিক উত্তর ১২.৫ ডলার ২০% কমে বিক্রয়মূল্য (১০০ - ২০) ডলার = ৮০ ডলার বিক্রয়মূল্য ৮০ ডলার হলে ক্রয়মূল্য ১০০ ডলার বিক্রয়মূল্য ১০ ডলার হলে ক্রয়মূল্য ( ১০০ × ১০)/৮০ = ১২.৫ ডলার
একটি দ্রব্য ১৪৪ টাকায় বিক্রি করায় ২০% লাভ হয়। বিক্রয়মূল্য পূর্বের বিক্রয়ের উপর শতকরা কত বাড়লে ৩০% লাভ হবে?
Correct Answer:
গ: ৮.৩৩%
Explanation:
একটি দ্রব্য ১৪৪ টাকায় বিক্রি করায় ২০% লাভ হয়। বিক্রয়মূল্য পূর্বের বিক্রয়ের উপর শতকরা কত বাড়লে ৩০% লাভ হবে? সঠিক উত্তর ৮.৩৩% ২০% লাভে, বিক্রয়মূল্য ১২০ টাকা হলে ক্রয়মূল্য ১০০ টাকা। বিক্রয়মূল্য ১২০ টাকা হলে ক্রয়মূল্য = ( ১০০ × ১৪৪) /১২০ টাকা = ১২০ টাকা ৩০% লাভে, ক্রয়মূল্য ১০০ টাকা হলে বিক্রয়মূল্য ১৩০ টাকা ক্রয়মূল্য ১২০ টাকা হলে বিক্রয়মূল্য = ( ১৩০ × ১২০)/১০০ = ১৫৬ টাকা বিক্রয়মূল্য বেশি ( ১৫৬ - ১৪৪) টাকা = ১২ টাকা ১৪৪ টাকায় বাড়াতে হবে ১২ টাকা ১০০ টাকায় বাড়তে হবে ( ১২ × ১০০)/১৪৪ = ৮.৩৩ টাকা
To make a high quality fertilizer, a seller mixes 26 kg of type A fertilizer at Tk 20 per kg with 30 kg of type B fertilizer at Tk 36 per kg an sells the mixture at Tk. 30 per kg. What is her profit percentage?
Correct Answer:
B: 5%
Explanation:
To make a high quality fertilizer, a seller mixes 26 kg of type A fertilizer at Tk 20 per kg with 30 kg of type B fertilizer at Tk 36 per kg an sells the mixture at Tk. 30 per kg. What is her profit percentage? Correct Answer 5% Hints: Profit percent = (1680 - 1600)/1600 × 100 = 80/16o0× 100 = 5w
A number when multiplied by 21 is increased by 420. Find the number-
Correct Answer:
B: 21
If rate of income tax is increased from 20% to 25%, find the additional amount of tax a person has to pay, if his total income is Tk. 40,000.
Correct Answer:
A: Tk. 2000
If x=80%, by what percent is x larger than x^2 ?
Correct Answer:
B: 16%
Explanation:
If x=80%, by what percent is x larger than x^2 ? Correct Answer 16% x = 80% x = 80/100 = 4/5 x2 = 16/25 = 16/25 × 100% = 64% x is larger than x2 ( 80% - 64%) = 16%
The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter ?
Correct Answer:
A: 3 1/3%
Explanation:
The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter ? Correct Answer 3 1/3% ধরি, breadth x unit length 2x unit Perimeter 2 ( 2x + x) unit = 6x unit 10% বৃদ্ধিতে , breadth ( x - 10x/100) = 9x/10 unit 10% বৃদ্ধিতে length ( 2x + 120x/100) = 11x/5 Perimeter 2 ( 9x/10 + 11x/5) unit = 2 ×31x/10 = 31x/5 Perimeter বৃদ্ধির হার ( 31x /5 - 6x / 6x × 100%) = 3 1/3 %
3.5 can be expressed in terms of percentage as ----
Correct Answer:
A: 350%
Explanation:
3.5 can be expressed in terms of percentage as ---- Correct Answer 350% 3.5 - এর শতকরায় প্রকাশ হচ্ছে (3.5 × 100)% = 350 %
A number when multiplied by 13 is increased by 180. The number is ----
Correct Answer:
B: 15
Explanation:
A number when multiplied by 13 is increased by 180. The number is ---- Correct Answer 15 ধরি, সংখ্যাটি x ∴ 13x - x = 180 ⇒ 12x = 180 ⇒ x = 18012 ∴ x = 15
What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits ?
Correct Answer:
C: 20%
Explanation:
What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits ? Correct Answer 20% 1 থেকে 70 পর্যন্ত মোট সংখ্যা 70 টি। এর মধ্যে যে সংখ্যাগুলো একক স্থানে 1 অথবা 9 আছে সেগুলো হলো : 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69 মোট 14 টি নির্ণেয় সংখ্যা হার = ( 14/70 × 100) % = 20 %
In a certain store, the profit is 320% of the cost. If the cost increases by 25% but, the selling price remains constant, approximately what percentage of the selling price is the profit ?
Correct Answer:
D: 70%
A company generated revenue of Tk 125,000 in 2012 which was 12.5% o its gross revenue. In 2013, the gross revenue increased by Tk. 250,000. What is the percentage increase in the revenue in 2013?
Correct Answer:
C: 25%
Explanation:
A company generated revenue of Tk 125,000 in 2012 which was 12.5% o its gross revenue. In 2013, the gross revenue increased by Tk. 250,000. What is the percentage increase in the revenue in 2013? Correct Answer 25% Generate revenue 12.5 হলে gross revenue 100 ∴ ,, ,, 125 ,, ,, ,, 100 + 12512.5 = 1000 ∴ Rate increase in the revenue in 2013 = 2501000×100 % = 25 %
Solution X is percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
Correct Answer:
A: 600
Explanation:
Solution X is percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume? Correct Answer 600 ধরি P milliliters y মেশাতে হবে। ∴ 10% of 200 + 30% of p = 25% of (200 + p) ⇒10100×200 + 30100×p = 25100×200 + p ⇒ 2000 + 30 p = 5000 + 25 p ⇒ 30p - 25p = 5000 - 2000 ⇒p = 30005 ∴ p = 600
If a man's salary is 20% more than that of his son, how many percent is the son's salary if compared to the salary of his father ?
Correct Answer:
C: 83
Explanation:
If a man's salary is 20% more than that of his son, how many percent is the son's salary if compared to the salary of his father ? Correct Answer 83 Hints: Let main's salary = m, son's = s m = s + s × . 20 = 1.20S s = m/1.20 × 100% = 83.33%
In a class of 200 students , 40 percent are girls . 25 percent of the boys and 10 percent of the girls signed up for a tour to Cox's bazar . What percent of the class signed up for the tour?
Correct Answer:
A: 19%
Explanation:
In a class of 200 students , 40 percent are girls . 25 percent of the boys and 10 percent of the girls signed up for a tour to Cox's bazar . What percent of the class signed up for the tour? Correct Answer 19% ধরি, total student = x তাহলে x এর 40% girls = .40% এদের মধ্যে 10% অর্থাৎ . 10 ×.40x girls এবং একইভাবে . 25 ×. 60x boys যার tour এ অর্থাৎ percent of the class signed up = (. 25×.60x + . 10 ×.40x) /x ×100% = 19%
The organizers of a fair projected a 25 percent increase in attendance this over that of last year but attendance this year actually decreased by 20 percent. What percent of the projected attendance was the actual attendance ?
Correct Answer:
C: 64%
Explanation:
The organizers of a fair projected a 25 percent increase in attendance this over that of last year but attendance this year actually decreased by 20 percent. What percent of the projected attendance was the actual attendance ? Correct Answer 64% Let, last year present = 100 this year projected present = (100 + 25) = 125 this year Actual present = (100 - 20) = 80 so, the percentage = ((80/125)×100)% = 64%
If the radius of a circle is increased by 6%, then the area of the circle is increased by ---
Correct Answer:
D: 12.36%
Explanation:
If the radius of a circle is increased by 6%, then the area of the circle is increased by --- Correct Answer 12.36% Area of circle increased by = r + r + r×r100 = radius = 6 + 6 + 6×6100 = 12 + 0·63 = 12·36
A person makes a profit of 10% on 25% of the quantity and a loss of 20% on the rest. What is the percentage gain or loss on the whole?
Correct Answer:
B: 12.5%
Explanation:
A person makes a profit of 10% on 25% of the quantity and a loss of 20% on the rest. What is the percentage gain or loss on the whole? Correct Answer 12.5% Suppose cost price = 100 Tk. Gain on 25Tk = 2.50 Tk = Selling price = 25 + 2.50 = 27.50 TK Loss on 75 Tk = 15 Tk Selling price = 75 - 15 = 60 Tk Total selling price = 60 + 27.50 = 87.50 Loss = 100 - 87.50 = 12.50
Express ( 20 * .052) in terms of percentage.
Correct Answer:
B: 0.05
Explanation:
Express ( 20 * .052) in terms of percentage. Correct Answer 0.05 ইন্দু, রাকেশ ও বিধু অর্থ চাঁদ। অন্যদিকে তুরগ অর্থ ঘোড়া, অশ্ব।
A dishonest trader mixes 2kg of vegetable ghee costing Tk. 45 a kg with 3 kg of standard ghee costing Tk. 70 per kg. He sells the mixed ghee at Tk. 65 per kg. What is his percentage of profit?
Correct Answer:
C: 8.33%
Explanation:
A dishonest trader mixes 2kg of vegetable ghee costing Tk. 45 a kg with 3 kg of standard ghee costing Tk. 70 per kg. He sells the mixed ghee at Tk. 65 per kg. What is his percentage of profit? Correct Answer 8.33% উদ্ভিজ্জ ঘি 2 kg দাম 45× 2 = 90আদর্শ ঘি 2kg দাম 70× 3 = 210মিশ্রিত 5kg ঘি এর মোট দাম = 300 টাকাপ্রতি কেজি ঘি এর বিক্রয়মূল্য 65 টাকা5কেজি " " " 65× 5 = 325 টাকালাভ (325 - 300) = 25 টাকাএখন 300 টাকায় লাভ 25 টাকা100 টাকায় লাভ 25/300× 100টাকা = 8.33 টাকাঅর্থাৎ লাভ 8.33%