6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Out of the 60 students of a class, 29 took Mathematics, 32 took Biology and 8 took none of the two subjects. How many students took both Mathematics and Biology?

A) 8	B) 9
C) 7	D) 6

Answer & Explanation Answer: B) 9

Explanation:

Number of students who took only Mathematics n(m) = 29
Number of students who took only biology n(b) = 32
Total number of students n(t) = 60
Total number of students of both mathematics and biology n(m b) = 60 - 8 = 52
Total number of students who took both = 32 + 29 - 52 = 9

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

The sum of a non-zero number and its reciprocal is 2. What is the number?

A) 1	B) 2
C) 0	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

Choose the odd word/letters/number/number pair from the given alternatives.

A) 2890	B) 3375
C) 1728	D) 1331

Answer & Explanation Answer: A) 2890

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If 2x + 3y = 0 and 3x - 4y = 34, then x - y = ______

A) 10	B) -10
C) 2	D) -2

Answer & Explanation Answer: A) 10

Explanation:

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Exam Prep: Bank Exams

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Q:

If $a^{3} - b^{3} = 91$ and a - b = 1, then what is the value of ab?

A) 27	B) 6
C) 9	D) 30

Answer & Explanation Answer: D) 30

Explanation:

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Exam Prep: Bank Exams

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Q:

What is the value of the expression $a^{3} - 5 + \frac{28}{16 a}$ , when a = 2?

A) 2	B) 5
C) 7	D) 8

Answer & Explanation Answer: C) 7

Explanation:

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Exam Prep: Bank Exams

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Q:

A sum of Rs. 3000 amounts to Rs. 6000 in two years at compound interest. The interest for four years is

A) Rs.9000	B) Rs.12000
C) Rs.6000	D) Rs.3000

Answer & Explanation Answer: A) Rs.9000

Explanation:

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

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Q:

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 198, then what is the difference between the first and the third number?

A) 216	B) 297
C) 661	D) 431

Quantitative Aptitude - Arithmetic Ability Questions

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