6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the area of the sector whose central angle is 90° and radius of the circle is 14 cm?

A) 308 sq cm	B) 77 sq cm
C) 154 sq cm	D) 231 sq cm

Answer & Explanation Answer: C) 154 sq cm

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Filed Under: Simplification
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Q:

The value of $\frac{a}{a - b} + \frac{b}{b - a}$ is

A) a+b/a-b	B) -1
C) 2ab	D) 1

Answer & Explanation Answer: D) 1

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Q:

Expand and simplify ${(3 x + 2)}^{2} * (4 x - 3) - (2 x^{3} - 9 x^{2} + 12 x - 24)$

A) 34x3 + 30x2 - 32x - 12	B) 34x3 + 30x2 - 32x + 12
C) 34x3 - 30x2 - 32x + 12	D) 34x3 - 30x2 + 32x - 12

Answer & Explanation Answer: B) 34x3 + 30x2 - 32x + 12

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Q:

If tan(A/2) = x, then the value of x is

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

Answer & Explanation Answer: D) √[(1 - cosA)/(1 + cosA)]

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Q:

A bank offers 20% compound interest per half year. A customer deposits Rs 2800 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is ______.

A) Rs 3584	B) Rs 896
C) Rs 1792	D) Rs 448

Answer & Explanation Answer: C) Rs 1792

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

Find the fraction which bears the same ratio to 1/27 that 3/7 does to 5/9 .

A) 5/9	B) 1/35
C) 45/7	D) 7/45

Answer & Explanation Answer: B) 1/35

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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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 a + b + c = 9, ab + bc + ca = 26, $a^{3} + b^{3} = 91, b^{3} + c^{3} = 72 and c^{3} + a^{3} = 35$ , then what is the value of abc?

A) 48	B) 24
C) 36	D) 42

Quantitative Aptitude - Arithmetic Ability Questions

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