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 - 40% of 1640 + ? = 35% of 980 + 150% of 850 ?

A - 962

B - 992

C - 300

D - 452

Answer : A

Explanation

Let the unknown value is p, then
p = (35100 x 980  + 150100 x 850) - (40100 x 1640 )
p = 343 + 619 = 962

Q 2 - If Rs. 2800 is 27 percent of the value of a car, the worth of car in Rs. is ?

A - 1008080

B - 400000

C - 800000

D - 980000

Answer : D

Explanation

Let z be the worth of car.
Then, 27 of p = 2800
     p = (2800x100x72) = Rs. 980000

Q 3 - In a competitive examination in Zone A, 6% candidates got selected from the total appeared candidates. Zone B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A. What was the number of candidates appeared from each Zone?

A - 8000

B - 9000

C - 7600

D - 9800

Answer : A

Explanation

Let p be the number of candidates appeared from each zone.
Then, 7% of p - 6% of p = 80
p = 80 x 100 = 8000

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 population of a town increases 5% annually but is decreased by immigration annually to the extent of 0.5 % .what will be the increase percent in 3 years

A - 11%

B - 11.4%

C - 11.6%

D - 11.8%

Answer : A

Explanation

Increase in 3 years over 100 
=100 * ( 1+ 9/(2*100))3
=114.11
%AGE INCREASE = 11.4%

Q 8 - On decreasing the price of refrigerator by 25%, its sale is increased by 20% .what is the effect on revenue received by the shopkeeper?

A - 25%

B - 20%

C - 15%

D - 10%

Answer : D

Explanation

Let,price =Rs. 100, sale =Rs. 100
Then, sale value = 100*100=Rs.10000
New sale value =Rs.(75*120)=Rs.9000
Decrease %=1000/10000*100=10%

Q 9 - ?% of 64 = 8

A - 10.5

B - 11.5

C - 12.5

D - 13.5

Answer : C

Explanation

Let x% of 64 = 8.  Then, (x/100*64)=8
∴ x= 8* 100/64= 25/2=12.5.

Q 10 - 72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one subject from Biology or Mathematics and 40 took both, then the total number of students in the class is

A - 200

B - 240

C - 250

D - 320

Answer : C

Explanation

Let the number of students in the class be 100.
∴ Number of students in Biology = 72 and number of students in Maths = 44.
∴ Number of students opting for both the subjects = 72 + 44 � 100 = 16
When 16 students opt for both the subjects, total number of students = 100
∴ When 40 students took both the subjects, total number of students = (100/16)*40 = 250
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