6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If (1 - cosA)/(1 + cosA) = x, then the value of x is

A) (cotA + cosecA)2	B) (cotA - cosecA)2
C) cotA - cosecA	D) cotA + cosecA

Answer & Explanation Answer: B) (cotA - cosecA)2

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Q:

If ${(cotA - cosecA)}^{2} = x$ , then the value of x is

A) (1 - cosA)/(1 + cosA)	B) (1 - sinA)/(1 + sinA)
C) (1 - secA)/(1 + secA)	D) (1 - cosecA)/(1 + cosecA)

Answer & Explanation Answer: A) (1 - cosA)/(1 + cosA)

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Q:

What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

A) 260	B) 300
C) 280	D) 220

Answer & Explanation Answer: B) 300

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Q:

If a is positive and $a^{2} + \frac{1}{a^{2}} = 7, then a^{3} + \frac{1}{a^{3}} = ?$

A) 9	B) 27
C) 18	D) 0

Answer & Explanation Answer: C) 18

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Q:

For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?

A) 41	B) 50
C) 75	D) 125

Answer & Explanation Answer: D) 125

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

If cosec π/4 - sin π/3 = x, then the value of x is

A) 4/√3	B) (2√2-√3)/2
C) (1-√3)/√3	D) √3+2

Answer & Explanation Answer: B) (2√2-√3)/2

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Q:

The value of cos (1110 $°$ ) is

A) √3/2	B) 1/2
C) 1/√2	D) 1

Answer & Explanation Answer: B) 1/2

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Q:

Find the odd words/letters/number from the given alternatives.

A) 5,124	B) 7,342
C) 3,26	D) 2,15

Quantitative Aptitude - Arithmetic Ability Questions

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