Aptitude - Percentages Online Quiz


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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.

Questions and Answers

Q 1 - 88% of 370 + 24% of 210 - ? = 118

A - 258

B - 298

C - 320

D - 18

Answer : A

Explanation

Let the unknown value is p
88% of 370 + 24% of 210 - p = 118
p = 325.60 + 50.40 - 118
= 258

Q 2 - The sum of two numbers is 2825 of the first number. The second number is what percent of the first?

A - 25%

B - 11%

C - 12%

D - none of these

Answer : C

Explanation

Let p and q be the numbers, then
p + q = 2825p
q = 2825p - p
q = 325p
qp = 325
For percentage: qp = 325 x 100
= 12%

Q 3 - Saurav went to the stationery and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?

A - 22.90

B - 18.30

C - 19.70

D - 16.40

Answer : C

Explanation

Let p be the amount of taxable purchases.
Then, 6100 p = 30100
p = (30100 x 1006)
  = 5
The cost of tax free items: [25 - (5 + 0.30)] = Rs. 19.70

Q 4 - A spider climbed 6212% of the height of the pole in one hour and in the next hour it covered 1212% of the remaining height. If the height of the pole is 192m, then distance climbed in second hour is?

A - 9

B - 7

C - 10

D - 12

Answer : A

Explanation

Height climbed in second hour = 1212% of (100 - 6212)% of 192
Therefore, the distance climbed in second hour by spider is 9m.  

Q 5 - The monthly salary of Abdul is Rs 60000. He spend 20% of it on the education of his children, 25% on house rent, 5% on travels, 30% on food, 8% on miscellaneous items and rest he saves for the future. Find his savings.

A - 7000

B - 7200

C - 7500

D - 8000

Answer : B

Explanation

Total expenditure = (20 + 25 + 5 + 30 +8)% = 88%
Savings = 100% - 88% = 12%
=> His savings = 12/100 * 60000
= 7200

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.

A - 15%

B - 300/23%

C - 50/3%

D - 250/23%

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 - The income of broker remains unchanged though the rate of commission is increased from 5% to 6% .the percentage of slump in business is

A - 100/3

B - 100/6

C - 100/7

D - 100/8

Answer : B

Explanation

Let the business value changes from x to y
Then, 5% of x=6% of y or 5/100*x=6/100 y
Or y = 5/6x
Change in business = x-5/6x=1/6x
 Percentage slum in business=1/6 x * 1/x*100=100/6 %

Q 8 - A student who secures 30% marks in an exam fails by 30 marks .Another student who secures 35% marks gets 42 marks more than required to pass .the percentage of marks required is

A - 32.08%

B - 22.05%

C - 29.33%

D - 35%

Answer : A

Explanation

30% of x + 30= 35% of x -42
Or 5% of x =72
=>x=1440
Pass marks =30% of 1440 +30=432+30=462
Pass percentage = 462/1440*100=32.08% 

Q 9 - What percent of 2/7 is 1/35?

A - 2.5%

B - 10%

C - 25%

D - 20%

Answer : B

Explanation

 Let's have x % of 2/7 = 1/35
=> x/100 * (2/7) = 1/35 
=>x = 1/35 * 7/2 * 100
= 10%

Q 10 - If the radius of a circle is increased by 4 times, what will be the percentage increase in its area?

A - 400%

B - 800%

C - 900%

D - 1500%

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%


aptitude_percentages.htm

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