6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If 14.35 - (1.956 - x ) - 83.92 = 3.858 then what is the value of x?

A) -92.456	B) 75.384
C) 71.472	D) 104.084

Answer & Explanation Answer: B) 75.384

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Q:

Sec 45% + Tan 30% =

A) (√6 + 1)/√3	B) (1 + √3)/2
C) (√3 + 2)/√3	D) 5/√3

Answer & Explanation Answer: A) (√6 + 1)/√3

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Q:

If A and B are the roots of the equation ${Ax}^{2} - A^{2} x + AB = 0$ , then what is the value of A and B respectively?

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

Answer & Explanation Answer: A) 1, 0

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Q:

If secA + tanA = x, then find the value of x.

A) √[(1 - sinA)/(1 + sinA)]	B) (1 + sinA)/(1 - sinA)
C) (1 - sinA)/(1 + sinA)	D) √[(1 + sinA)/(1 - sinA)]

Answer & Explanation Answer: D) √[(1 + sinA)/(1 - sinA)]

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Q:

If the value of √42 is approximately 6.480, then what is the approximate value of √(6/7)?

A) 0.925	B) 0.935
C) 0.945	D) 0.955

Answer & Explanation Answer: A) 0.925

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Q:

The inradius of a equilateral triangle is 10 cm. What is the circum-radius (in cm) of the same triangle?

A) 5	B) 10√3
C) 20	D) 20√3

Answer & Explanation Answer: C) 20

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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) Tetanus	B) Syphilis
C) Plague	D) Malaria

Answer & Explanation Answer: D) Malaria

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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

Quantitative Aptitude - Arithmetic Ability Questions

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