6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Expand and simplify ${(x + 4)}^{2} + {(x - 2)}^{2}$

A) 2(x2 + 2x + 10)	B) 2(x2 + 2x - 10)
C) 2(x2 - 2x + 10)	D) 2(x2 - 2x - 10)

Answer & Explanation Answer: A) 2(x2 + 2x + 10)

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Q:

What is the value of cot 11π/6?

A) -√3	B) -1
C) √3	D) -1/2

Answer & Explanation Answer: A) -√3

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Q:

If cos 135° = x, then the value of x is

A) -1/√2	B) -√3/2
C) -1/2	D) 2

Answer & Explanation Answer: A) -1/√2

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Q:

If $a^{2} + \frac{1}{a^{2}} = 38$ , then find the value of $(a - \frac{1}{a})$ ?

A) 2	B) 4
C) 6	D) 8

Answer & Explanation Answer: C) 6

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Q:

What is the value of ( 1/2 - cot45) ?

A) (2√2-√3)/2	B) 3/2
C) (3√3-1)/3	D) -1/2

Answer & Explanation Answer: D) -1/2

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Q:

If Girish's salary is 4/9 times of Harishankar's and Shirish's salary is 5/6 times of Harishankar's, what is the ratio of Girish's salary to Shirish's.

A) 27:10	B) 10:27
C) 8:15	D) 15:8

Answer & Explanation Answer: C) 8:15

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Q:

Given: 5x -3(2x-7) > 3x - 1 < 7 + 4x; then x can take which of the following values?

A) 6	B) 9
C) -6	D) -9

Answer & Explanation Answer: C) -6

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Q:

What is the value of Sin 30- √2 Cos 30

A) (1 - √6)/√2	B) (1 - √6)/2
C) (3 - √6)/2	D) (3 - √6)/√2

Quantitative Aptitude - Arithmetic Ability Questions

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