6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of Sin 30° - Cosec 45°?

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

Answer & Explanation Answer: D) (1 - 2√2)/2

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Q:

If a + b = 1 and ab = -6, then what is the value of $a^{3} + b^{3}$ ?

A) 17	B) 15
C) 19	D) 13

Answer & Explanation Answer: C) 19

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Q:

What is the value of (cos45° + 1/3) ?

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

Answer & Explanation Answer: C) (3+√2)/3√2

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Q:

If sin (3x 20°) = cos (3y + 20°), then find the value of (x + y).

A) 90°	B) 60°
C) 120°	D) 30°

Answer & Explanation Answer: D) 30°

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Q:

The distance between the points (7,7) and (k,-5) is 13. Find k?

A) -2	B) 4
C) -4	D) 2

Answer & Explanation Answer: D) 2

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Q:

Select the odd number from the given alternatives.

A) 1600	B) 2500
C) 3600	D) 4000

Answer & Explanation Answer: D) 4000

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Q:

What is the fourth proportional to 6, 24 and 83?

A) 249	B) 332
C) 166	D) 498

Answer & Explanation Answer: B) 332

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Filed Under: Ratios and Proportions
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Q:

The third proportional of two numbers 12 and 48 is

A) 84	B) 96
C) 192	D) 144

Quantitative Aptitude - Arithmetic Ability Questions

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