6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If tanA - tanB = X, then the value of X is

A) (tanA + tanB)/(1 - tanAtanB)	B) (tanA + tanB)/(1 + tanAtanB)
C) (tanA - tanB)/(1- tanAtanB)	D) (tanA - tanB)/(1 + tanAtanB)

Answer & Explanation Answer: D) (tanA - tanB)/(1 + tanAtanB)

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Q:

If a(x + y) = b(x - y) = 2ab, then the value of $2 (x^{2} + y^{2})$

A) 2(a2 - b2)	B) 2(a2 + b2)
C) 4(a2 - b2)	D) 4(a2 + b2)

Answer & Explanation Answer: D) 4(a2 + b2)

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Q:

Reflection of the point (2,7) in the yaxis is

A) (2,7)	B) (-2,-7)
C) (-7,2)	D) (7,2)

Answer & Explanation Answer: B) (-2,-7)

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Q:

Δ DEF is right angled at E. If m∠D = 45%., then Cosec F =

A) 1/2	B) 1/√2
C) √2	D) 1/√3

Answer & Explanation Answer: C) √2

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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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Q:

If $\frac{a}{q - r} + \frac{b}{r - p} - \frac{c}{p - q}$ , then find the value of (pa + qp + rc) is

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

Answer & Explanation Answer: A) 0

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Q:

Find the roots of the quadratic equation $27 x^{2} + 57 x - 14 = 0$

A) 2/9, 7/3	B) 2/9, -7/3
C) 9/2, -3/7	D) -9/2, 3/7

Answer & Explanation Answer: B) 2/9, -7/3

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) FJ	B) KO
C) RV	D) WZ

Quantitative Aptitude - Arithmetic Ability Questions

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