6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Point Q(-2,b) is the midpoint of segment EF. Co-ordinates of E are (-7,-6) and F are (a,0). What is the value of a and b?

A) a = 3; b = -3	B) a = -3; b = -3
C) a = 3; b = 3	D) a = -3; b = 3

Answer & Explanation Answer: A) a = 3; b = -3

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Q:

Find the value of x if $\sqrt{1 - \frac{x}{24}} = \frac{13}{18}$

A) 155	B) 157
C) 159	D) 161

Answer & Explanation Answer: A) 155

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Q:

In ΔABC measure of angle B is 90 deg. If cosA = 5/13, and AB = 10 cm, then what is the length (in cm) of side BC?

A) 26	B) 24
C) 25	D) 5

Answer & Explanation Answer: B) 24

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Q:

If secA - tanA = x, then the value of x is

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

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

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Q:

The value of (1 - √2) + (√2 - √3) + (√3 - √4) + ..... + (√15 - √16) is

A) 0	B) 1
C) -3	D) 4

Answer & Explanation Answer: C) -3

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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:

$\tan^{3} A is equal to$

A) 3tanA - tan3A(1 - 3tan2A)	B) 3tanA + tan3A(1 - 3tan2A)
C) 3tanA - tan3A(1 + 3tan2A)	D) 3tanA + tan3A(1 + 3tan2A)

Answer & Explanation Answer: A) 3tanA - tan3A(1 - 3tan2A)

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Q:

Find the value of $\sqrt{7 \sqrt{7 \sqrt{7 \sqrt{7 \sqrt{7 \sqrt{7}}}}}}$ ?

A) 73164	B) 7164
C) 76364	D) 7764

Quantitative Aptitude - Arithmetic Ability Questions

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