6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $tanα = \sqrt{2} - 1$ , then the value of $tanα - cotα = ?$

A) -2	B) √2 + 1
C) 1	D) 2√2

Answer & Explanation Answer: A) -2

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Q:

What is the value of (cos30° + 1/2) ?

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

Answer & Explanation Answer: C) (√3+1)/2

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Q:

For real a, b and c if $a^{2} + b^{2} + c^{2} = ab + bc + ca$ , then find the value of ${(a + b + c)}^{2}$ .

A) 9a2	B) 81a2
C) 27a2	D) 243a2

Answer & Explanation Answer: A) 9a2

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Q:

${Sin}^{6} A + {Cos}^{6} A - 1$ is equal to

A) -3Sin2ACos2A	B) 1 - 3 SinACosA
C) 1 + 3Sin2ACos2A	D) 0

Answer & Explanation Answer: A) -3Sin2ACos2A

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Q:

Calculate the sum of squares from 1 to 9.

A) 284	B) 285
C) 385	D) 380

Answer & Explanation Answer: B) 285

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Q:

Length of three line segments isgiven. Is construction of a triangle possible with the segments in the given cases?

A) 8 cm, 7 cm, 18 cm	B) 8 cm, 15 cm, 17 cm
C) 10 cm, 6 cm, 4 cm	D) 8 cm, 10 cm, 20 cm

Answer & Explanation Answer: B) 8 cm, 15 cm, 17 cm

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Q:

The two roots of an quadratic equation are given as x = 1/2 and x = -1/3. The equation can be written as

A) (2x - 1)(3x - 1) = 0	B) (2x + 1)(3x - 1) = 0
C) (2x - 1)(3x + 1) = 0	D) (2x + 1)(3x + 1) = 0

Answer & Explanation Answer: C) (2x - 1)(3x + 1) = 0

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Q:

If Rs. 87 was divided between James and Radha in the ratio 1: 2, how much money did Radha get?

A) Rs. 29	B) Rs. 57
C) Rs. 58	D) Rs. 59

Quantitative Aptitude - Arithmetic Ability Questions

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