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.

Questions and Answers

Q 1 - Ratio 5 : 4 expressed as a percent equals :

A - 12.5%

B - 125%

C - 60%

D - 75%

Answer : B

Explanation

5 : 4 = 5⁄4
= (5⁄4 x 100 ) % = 125 %

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 = 85⁄65q i.e p = 17⁄13q
Now, p + q = 2490 i.e. 17⁄13q + q = 2490
Therefore, q = 1079
This shows the two numbers are : q = 1079 and 17⁄13q = 1411 = p

Q 3 - If one number is 80% of the other and 4 times the sum of their squares is 656, then the numbers are?

A - 9, 18

B - 2, 3

C - 8, 10

D - 14, 24

Answer : B

Explanation

Let one number is p and other q.
The other number q will be 80% of p i.e. q = 4⁄5p
Therefore, 4 [p2 + (4⁄5p)2] = 656
41⁄25p2 = 164
p = 10
other number, q = 80.

Q 4 - Suresh spends 24% of his monthly income on food and 15% on the education of his children. Of the remaining salary, he spends 25% on entertainment and 20% on conveyance. He is now left with Rs. 10736. What is the monthly salary of Suresh?

A - Rs. 32000

B - Rs. 30000

C - Rs. 29000

D - Rs. 33500

Answer : A

Explanation

Let z be the monthly salary of Sameer.
[100-(25 + 20)]% of [100 - (24 + 15)]% of x = 10736
→ 55% of 61% of x = 10736
Rs. 32000

Q 5 - Of the 1000 inhabitants of a town, 60% are males of whom 20% are literate. If, of all the inhabitants, 25% are literate, then what percent of the females of the town are literate?

A - 30%

B - 37.5%

C - 35%

D - 32.5%

Answer : D

Explanation

60⁄100 x 1000 = 600 = number of males
→ 1000 - 600 = 400 = number of females
Literates = 25% of 1000 = 250
Literate males = 20% of 600 = 120
Literate females = 250 - 120 = 130
Therefore, the percent of the females literate = 130⁄400 x 100 = 32.5%

Q 6 - In a recent survey 40% houses contained 2 or more people. Of those houses containing only one person, 25% were having only a male. What is the percentage of all the houses which contain exactly one females and no males?

A - 75

B - 40

C - 15

D - 45

Answer : D

Explanation

As per question, 40% houses contain two or more people.
i.e. 60% houses have only one person. O these houses 25% have male.
∴ 75% of 60% of the total houses have only one female and no males.
 = .75 * 60% = 45%

Q 7 - What will be 90 % of a number whose 200% is 300?

A - 135

B - 140

C - 145

D - 150

Answer : A

Explanation

200% of x = 300,=>x=150
90% of 150=135

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 - When the price of a product was increased by 15%, the number sold was decreased by 20%. What was the net effect?

A - 8% gain

B - 5% loss

C - 8% loss

D - Cannot be determined

Answer : C

Explanation

Let original price of the product = Rs 100 and number of products originally sold = 100.
Original sale proceeds = 100*100 = Rs 10,000/-
New sale proceeds = 115*80 = Rs 9200
Decrease = 10,000 – 9,200 = 800/-
∴ Decrease % = (800/1000)*100 = 8%

aptitude_percentages.htm
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