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

Answer : D

Explanation

60% of 264 = 60100 x 264 = 158.4
50% of 234 = 50100 x 234 = 117
70% of 164 = 70100 x 164 = 114.8
20% of 1500 = 20100 x 1500 = 300
15% of 1056 = 15100 x 1056 = 158.4

Q 2 - The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, then the numbers are?

A - 1411, 1079

B - 1411, 1011

C - 1301, 1079

D - 1301, 1011

Answer : A

Explanation

Let p and q be the numbers.
Then, 6.5% of p = 8.5% of q
p = 8565q i.e p = 1713q
Now, p + q = 2490 i.e. 1713q + q = 2490
Therefore, q = 1079
This shows the two numbers are : q = 1079 and 1713q = 1411 = p

Q 3 - The price of a car is Rs. 325000. It was insured to 85% of its price. The car met with an accident and the insurance company paid 90% of the insurance. What was the difference between the price of the car and the amount received?

A - Rs. 76375

B - Rs. 73255

C - Rs. 75555

D - Rs. 78756

Answer : A

Explanation

Amount = 90% of 85% of Rs. 325000
= 90100 x 85100 x 325000
= Rs. 248625
The difference between the price of the car and the amount received is : 325000 - 248625 = Rs. 76375

Q 4 - If m% of m is 36, then m is?

A - 70

B - 64

C - 50

D - 60

Answer : D

Explanation

→ Z% of Z = 36
Therefore, (Z100)x Z = 36
Z = 60

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 - A rectangle has width 'a' and length 'b'. If the width is decreased by 20% and length is increased by 10%, what is the area of the new rectangle in percentage compared to 'ab'?

A - 88%

B - 110%

C - 80%

D - 120%

Answer : A

Explanation

New width = (80/100)*a = 4a/5
New length = (110/100)*b = 11b/10
Area of new rectangle = 4a/5 * 11b/10
= 22ab/25
∴ Area of new rectangle in percentage compared to ab = (22ab/25)/25 * 100 = 88%

Q 7 - 10% income of A is equal to 15% income of B and 12% of income of B is equal to 20%of income of C. If the income of C is 1000, the total income of A, B and C is

A - 3777.77

B - 3666.66

C - 3555.55

D - 3333.33

Answer : A

Explanation

12% of income of B = 20%of income of C
12%B=20%C
B=20/12C=5/3C=5/3*1000
10% income of A = 15% income of B
10%A=15%B
A=10/15B=2/3B =2/3*5/3*1000=10000/9
A+B+C=3777.77

Q 8 - The population of a town is 176400. It increases annually at the rate of 5% p.a. What was it 2 years ago?

A - 160000

B - 260000

C - 360000

D - 460000

Answer : A

Explanation

Population 2 years ago = 176400/(1+5/100)2 =(176400*20/21*20/21)=160000.

Q 9 - ?% of 24 = 0.72

A - 10.5

B - 11.5

C - 12.5

D - 13.5

Answer : C

Explanation

Let x% of 24 = 0.72. Then,
(x/100*24)=0.72= 72/100=>24x=72 =>x=3.

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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