6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The area of a circle is 346.5 cm2. Find its circumference (in cm).

A) 132	B) 38
C) 66	D) 76

Answer & Explanation Answer: C) 66

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

1 1542

Q:

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

A) IDD	B) AGG
C) UTT	D) REE

Answer & Explanation Answer: D) REE

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

What is the remainder, when $4 x^{4} + 10 x^{3} - 20 x^{2} + 90 is divided by (x + 2)$ ?

A) 0	B) -6
C) 45	D) 90

Answer & Explanation Answer: B) -6

Explanation:

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Filed Under: Square Roots and Cube Roots

3 1542

Q:

Mandeep works 3 times as fast as Sampat. If Sampat can complete a job alone in 60 days, then in how many days can they together finish the job?

A) 7 days	B) 4 days
C) 5 days	D) 15 days

Answer & Explanation Answer: D) 15 days

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

1 1541

Q:

Seven years ago, the average age of A, B and C was 51 years. If A is 3 years older than B and B is 3 years older then C then the present ages of A, B and C are ( in year)

A) 61, 58 and 55	B) 54, 51, and 48
C) 55, 58, and 61	D) 48, 51 and 54

Answer & Explanation Answer: A) 61, 58 and 55

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

At what rate of compound interest per annum will a sum of Rs 50000 become Rs 73205 in 2 years?

A) 21 percent	B) 19 percent
C) 17 percent	D) 15 percent

Answer & Explanation Answer: A) 21 percent

Explanation:

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Filed Under: Compound Interest
Exam Prep: Bank Exams

2 1540

Q:

If $\frac{a}{b + c} = \frac{b}{c + a} = \frac{C}{b + a}$ then which one of the following statements is correct?

A) Each fraction is equal to 1 or -1	B) Each fraction is equal to 1/2 or 1
C) Each fraction is equal to 1/2 or -1	D) Each fraction is equal to 1.2 only

Answer & Explanation Answer: C) Each fraction is equal to 1/2 or -1

Explanation:

a/(b+c) = b/(c+a) = c/(a+b)

Taking reciprocal and adding 1 to each ratio we get;

(b+c)/a + 1 = b/(c+a) + 1 = c/(a+b) + 1

Or (a+b+c)/a = (a+b+c)/b = (a+b+c)/c

So this can only be equal when a=b=c or a+b+c = 0

When a=b=c we get

a/(b+c)= ½When a+b+c = 0 we get

b+c = -a

So a/(b+c) = -1

So the ratios are ½ or -1

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If in 3 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs. 25,000 in 3 years at the same rate?

A) 4775.4	B) 5774.4
C) 4557.4	D) 5575.4

Quantitative Aptitude - Arithmetic Ability Questions

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