6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the compound interest earned on Rs 80,000 at 40% per annum in 1 year compounded quarterly?

A) 28317	B) 37128
C) 18732	D) 21387

Answer & Explanation Answer: B) 37128

Explanation:

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Exam Prep: Bank Exams

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Q:

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

A) 10	B) 5
C) 20	D) 30

Answer & Explanation Answer: A) 10

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Filed Under: Area
Exam Prep: Bank Exams , CAT

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Q:

If $x^{2} + \frac{1}{x^{2}} = 98, then x^{3} + \frac{1}{x^{3}} = ?$

A) 970	B) 1030
C) -970	D) -1030

Answer & Explanation Answer: A) 970

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of [(sin 7x – sin 5x)÷(cos 7x + cos 5x)] – [(cos 6x – cos 4x)÷(sin 6x + sin 4x)]?

A) 1	B) 2 tan x
C) tan 2 x	D) tan (3 x/2)

Answer & Explanation Answer: B) 2 tan x

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The curved surface area and the diameter of a right circular cylinder are 660 sq.cm and 21 cm respectively. Find its height (in cm).

A) 9	B) 10
C) 12	D) 8

Answer & Explanation Answer: B) 10

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Filed Under: Area
Exam Prep: Bank Exams

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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:

If $\frac{a^{2}}{b + c} = \frac{b^{2}}{c + a} = \frac{c^{2}}{a + b} = 1$ then the value of $\frac{2}{1 + a} + \frac{2}{1 + b} + \frac{2}{1 + c}$

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: C) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

A) B	B) A
C) A nor B	D) None of the above

Quantitative Aptitude - Arithmetic Ability Questions

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