6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $2 x + \frac{1}{3 x} = 5$ , the value of $\frac{5 x}{6 x^{2} + 20 x + 1}$ is

A) 1/4	B) 1/6
C) 1/5	D) 1/7

Answer & Explanation Answer: D) 1/7

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Filed Under: Simplification
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Q:

Of three positive numbers, the ratio of first and second is 5 : 2, ratio of second and third is 5 : 4. The product of first and third is 1800. What is the sum of the three numbers?

A) 43	B) 133
C) 119	D) 129

Answer & Explanation Answer: D) 129

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

The distance between the centres of two circles is 61 cm and their radii are 35 cm and 24 cm. What is the length (in cm) of the direct common tangent to the circles?

A) 60	B) 54
C) 48	D) 72

Answer & Explanation Answer: A) 60

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If compound interest received on a certain amount in the 3rd year is Rs. 1,240, what will be the compound interest (in Rs) for the 4th year on the same amount at 9% rate of interest?

A) 1245.6	B) 1521.6
C) 1351.6	D) 1220.6

Answer & Explanation Answer: C) 1351.6

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

If $\frac{1}{a} (a^{2} + 1) = 3,$ then the value of $\frac{a^{6} + 1}{a^{3}}$ is

A) 9	B) 18
C) 27	D) 1

Answer & Explanation Answer: B) 18

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Filed Under: Simplification
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Q:

By which least number should 5000 be divided so that it becomes a perfect square?

A) 2	B) 5
C) 10	D) 15

Answer & Explanation Answer: A) 2

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

Δ DEF is right angled at E. If m∠D = 45%., then Cosec F =

A) 1/2	B) 1/√2
C) √2	D) 1/√3

Answer & Explanation Answer: C) √2

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Q:

If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modern Maths?

A) 15	B) 20
C) 25	D) 40

Quantitative Aptitude - Arithmetic Ability Questions

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