6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:

A) 18 m	B) 20 m
C) 27m	D) 9 m

Answer & Explanation Answer: B) 20 m

Explanation:

A : B = 100 : 90.

A : C = 100 : 72.

B:C = B/A*A/C = 90/100*100/72 = 90/72

When B runs 90 m, C runs 72 m.

When B runs 100 m, C runs (72/90*100)m = 80m

B can give C 20 m.

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Filed Under: Races and Games

5 3162

Q:

15% of 32 is

A) 3.6	B) 4.8
C) 5.2	D) 5.8

Answer & Explanation Answer: B) 4.8

Explanation:

15% of 32 is

15 x 32/100 = 4.8.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

17 3161

Q:

The ratio of present ages of R and S is 11:17. Before 11 years the ratio of their ages was 11:20. What is R's present age (in years)?

A) 51	B) 33
C) 22	D) 40

Answer & Explanation Answer: B) 33

Explanation:

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

5 3161

Q:

A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct, then the correct answer would be ?? please explain in detail

A) 553681	B) 555181
C) 555681	D) 556581

Answer & Explanation Answer: C) 555681

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 3149

Q:

Buy at 30 cell at 50. What is the profit percentage?

A) 20%	B) 40%
C) 45%	D) 35%

Answer & Explanation Answer: B) 40%

Explanation:

Cost price = Rs. 30

Selling price = Rs. 50

Gain = Rs. 20

Profit % = Gain/cost price x 100 = 20/50 x 100 = 40%

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

13 3148

Q:

If $a^{3} + b^{3} = 341$ and ab = 30, then what is the value of a + b?

A) 1	B) 9
C) 7	D) 11

Answer & Explanation Answer: D) 11

Explanation:

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Filed Under: Simplification

6 3148

Q:

Weights of two friends A and B are in the ratio of 7 : 8. A’s weight increases by 10% and the total weight of A and B increase by 20%. What is the percentageincrease in the B’s weight?

A) 28.75	B) 11.55
C) 32.85	D) 24.25

Answer & Explanation Answer: A) 28.75

Explanation:

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Filed Under: Percentage

7 3144

Q:

ln a company all Mondays and Sundays are offs. If a month starts with a Monday and has 31 days then how manys offs will be there in that month?

A) 7	B) 8
C) 9	D) 5

Quantitative Aptitude - Arithmetic Ability Questions

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