6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $x = {at}^{2}$ and y = 2at then

A) x2 = 4ay	B) y2 = 4ax
C) x2 + y 2 = a2	D) x 2 - y2 = a 2

Answer & Explanation Answer: B) y2 = 4ax

Explanation:

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Q:

What is the value of $\tan (\frac{π}{4} + A) \times \tan (\frac{3 π}{4} + A) ?$

A) 1	B) 0
C) cot A/2	D) – 1

Answer & Explanation Answer: D) – 1

Explanation:

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Q:

If $cotA / \sqrt (1 + \cot^{2} A) = x$ , then the value of x is

A) sinA	B) cosecA
C) secA	D) cosA

Answer & Explanation Answer: D) cosA

Explanation:

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Q:

The price of an article is cut by 42%, to restore to its original value, the new price must he increased by ______.

A) 42 percent	B) 72.41 percent
C) 29.58 percent	D) 52.5 percent

Answer & Explanation Answer: B) 72.41 percent

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Q:

What is the value of (sin60° + 2/√3) ?

A) (2√3+1)/√3	B) 7/2√3
C) 3	D) 2+√3

Answer & Explanation Answer: B) 7/2√3

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Q:

If x - y = -9 and xy = -20, then find $x^{2} + y^{2}$ ?

A) 61	B) 41
C) 81	D) 51

Answer & Explanation Answer: B) 41

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Q:

Select the odd number from the given alternatives.

A) 110	B) 140
C) 154	D) 198

Answer & Explanation Answer: B) 140

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Q:

What is the value of tan3A?

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

Quantitative Aptitude - Arithmetic Ability Questions

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