6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $a = \sqrt{5 + 2 \sqrt{2}} & b = \sqrt{5 - 2 \sqrt{2}}$ , then find the value of $a^{2} - b^{2}$ .

A) 2	B) 4
C) 2√2	D) 4√2

Answer & Explanation Answer: D) 4√2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 48672

Q:

What is the simplified value of

$\frac{1}{\sqrt{17} - \sqrt{16}} - \frac{1}{\sqrt{16} - \sqrt{15}} + \frac{1}{\sqrt{15} - \sqrt{14}} - \frac{1}{\sqrt{14} - \sqrt{13}} + \frac{1}{\sqrt{13} - \sqrt{12}}$ ?

A) 4 – 2√3	B) √17 – 3√2
C) √17 + √12	D) 4 + 2√3

Answer & Explanation Answer: C) √17 + √12

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 48612

Q:

When 0.232323.... is converted into a fraction , then the result is

A) 1/5	B) 2/9
C) 23/99	D) 23/100

Answer & Explanation Answer: C) 23/99

Explanation:

$0.232323 . . . = 0.23 = \frac{23}{99}$

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Filed Under: Decimal Fractions

73 48543

Q:

Refer the below data table and answer the following question.

What was the total profit or loss of the company in the last 5 years?

A) Loss of Rs 45 crores	B) Profit of Rs 55 crores
C) Profit of Rs 45 crores	D) Loss of Rs 55 crores

Answer & Explanation Answer: C) Profit of Rs 45 crores

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

0 48508

Q:

$\frac{\sin 30 °}{1 + \cos 30 °} + \frac{1 + \cos 30 °}{\sin 30 °}$ = ?

A) 4	B) 3
C) 1	D) 2

Answer & Explanation Answer: A) 4

Explanation:

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0 48441

Q:

Which of the following statements is/are true?

$I . 11 \frac{1}{2} + 17 \frac{3}{4} - 5 \frac{1}{5} - 2 \frac{1}{10} = \frac{439}{20} II . \frac{9}{1078} > \frac{11}{1127} > \frac{12}{1219} III . \frac{149}{151} > \frac{153}{155} > \frac{157}{159}$

A) Only I	B) Only II
C) Only III	D) None is true.

Answer & Explanation Answer: A) Only I

Explanation:

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0 48409

Q:

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

A) 3√5	B) 2√5
C) 2√3	D) 3√3

Answer & Explanation Answer: B) 2√5

Explanation:

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0 48395

Q:

Find the next number in the given number series?

35, 36, 55, 111, ?

A) 278.5	B) 264.5
C) 212.5	D) 202

Answer & Explanation Answer: A) 278.5

Explanation:

The given number series is 35, 36, 55, 111, ?

35

35 x 1 + 1 = 36

36 x 1.5 + 1 = 55

55 x 2 + 1 = 111

111 x 2.5 + 1 = 278.5

Hence, the next number in the given number series is 278.5.

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Filed Under: Odd Man Out
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Quantitative Aptitude - Arithmetic Ability Questions

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