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Aptitude - Percentages Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Percentages. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : A
Explanation
35 : 10 = 35⁄10 = (35⁄10 x 100 ) % = 350 %
Q 2 - If Rs. 2800 is 2⁄7 percent of the value of a car, the worth of car in Rs. is ?
Answer : D
Explanation
Let z be the worth of car.
Then, 2⁄7 of p = 2800
p = (2800x100x7⁄2) = Rs. 980000
Q 3 - Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 85 of B. Fin the ratio of A:B.
Answer : A
Explanation
5⁄100A + 4⁄100B = 2⁄3 (6⁄100A + 8⁄100B) 1⁄20A + 1⁄25B = 1⁄25A + 4⁄75B A⁄B = 4⁄3
Answer : D
Explanation
→ Z% of Z = 36 Therefore, (Z⁄100)x Z = 36 Z = 60
Q 5 - A salesman is allowed 51⁄2% discount on the total sales made by him plus a bonus of 1⁄2% on the sales over Rs. 10000. If his total earnings were Rs. 1990, then his total sales in Rs. were?
Answer : C
Explanation
Let z be the total sales. Then, 51⁄2% of z + 1⁄2% of (z - 10000) = 1990 → 12z - 10000 = 398000 z = Rs. 34000
Q 6 - The price of a certain item is increased by 15%. If a consumer wants to keep his expenditure on the item the same as before, how much percent must he reduce his consumption of that item.
Answer : B
Explanation
If the price of a commodity increases by R%, to maintain the same expenditure, the reduction in consumption can be represented by:
{R/(100 + R)}*100%
= {15/(100 + 15)} * 100
= 300/23%
Q 7 - In an election the losing candidate gets 20% of the votes polled is defeated by 12000 votes. The number of votes polled by winning candidate is
Answer : C
Explanation
Let the votes polled by the winning candidate be x, then (x-12000) =20%of (x+(x-12000)) x=16000
Q 8 - The price of rice is increased by 10 %.If the expenditure is not allowed to increase , the ratio between the reduction in consumption and the original consumption is
Answer : D
Explanation
Reduction in consumption = 10/110*100=100/11% (reduction in consumption)/(original consumption) = 100/11*1/100=1/11=1:11
Answer : B
Explanation
x% of x = x/100 * x = 10% of y = y/10 => y = (x2/100) * 10 = x2/10
Q 10 - If the radius of a circle is increased by 4 times, what will be the percentage increase in its area?
Answer : D
Explanation
Area of circle = Πr2 Area of new circle = Π(4r2) = 16Πr2 = 16 times the area of the original circle ∴ Required percentage = (16 1)/1 * 100 = 1500%