6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $\frac{1}{1 + \frac{1}{1 + \frac{1}{1 + \frac{1}{x}}}}$ = $\frac{5}{8}$ , then what is the value of x?

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

Answer & Explanation Answer: A) 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If $\sqrt (1 - \cos^{2} A) = x$ , then the value of x is

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

Answer & Explanation Answer: B) sinA

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Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

A) 1:2	B) 2:3
C) 3:4	D) 3:5

Answer & Explanation Answer: B) 2:3

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If 5% of (P + Q) = 20% of (P – Q), then P is what percentage of Q?

A) 133.33	B) 166.66
C) 150	D) 171.33

Answer & Explanation Answer: B) 166.66

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) VT	B) FD
C) PN	D) JM

Answer & Explanation Answer: D) JM

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If $\frac{a^{2}}{b + c} = \frac{b^{2}}{c + a} = \frac{c^{2}}{a + b} = 1$ then the value of $\frac{2}{1 + a} + \frac{2}{1 + b} + \frac{2}{1 + c}$

A) 0	B) 1
C) 2	D) 3

Answer & Explanation Answer: C) 2

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Q:

Which of the following statements is not true?

A) The difference of two prime numbers, both greater than 2, is divisible by 2	B) For two different integers m, n and a prime number p, if p divides the product m × n, then p divides either m or n.
C) If a number is of the form 6n –1 (n being a natural number), then its is a prime number.	D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.

Answer & Explanation Answer: D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

A) 10	B) 5
C) 20	D) 30

Quantitative Aptitude - Arithmetic Ability Questions

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