6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If (X/4) = (Y/5) = (Z/9), then what is X : Y : Z?

A) 8 : 10 : 19	B) 4 : 5 : 9
C) 45 : 36 : 20	D) 15 : 12 : 7

Answer & Explanation Answer: B) 4 : 5 : 9

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

5 1536

Q:

If one-third of a number is 45, then what will be the 45% of that number?

A) 60.75	B) 58.25
C) 61.25	D) 70.75

Answer & Explanation Answer: A) 60.75

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If $x + \frac{1}{x} \neq 0 and x^{3} + \frac{1}{x^{3}} = 0, then the value of {(x + \frac{1}{x})}^{4} is :$

A) 9	B) 12
C) 15	D) 16

Answer & Explanation Answer: A) 9

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Filed Under: Simplification

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Q:

In each of the following questions two equations I and II are given. Solve both the equations and give answer:
$I . x^{2} + 2 x - 195 = 0 II . y^{2} + 30 y + 225 = 0$

A) x = y or relation can’t be established between x and y	B) x > y
C) x < y	D) x ≥ y

Answer & Explanation Answer: D) x ≥ y

Explanation:

I. x2 + 2x - 195 = 0 = (x+15) (x-13) => x = -15, 13

II. y2 + 30y + 225 = 0 = (y+15) (y+15) => y = -15, -15

So x ≥ y

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Q:

If $13 x^{2} = 17^{2} - 9^{2}$ , find the value of x?

A) 16	B) 12
C) 8	D) 4

Answer & Explanation Answer: D) 4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The length of the diagonal and the breadth of a rectangle are 26 cm and 10 cm respectively. Find its perimeter (in cm).

A) 68	B) 136
C) 43	D) 86

Answer & Explanation Answer: A) 68

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

In the first 40 overs of a 50 over innings, the run rate was 4.8 runs/over. What is the required run rate in the remaining 10 overs to reach the target of 241 runs?

A) 6.7	B) 6.5
C) 6.3	D) 4.9

Answer & Explanation Answer: D) 4.9

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The average marks of 45 students is shown as 65. It includes a wrong entry of 84 marks instead of 48 marks. The correct average is:

A) 65.8 marks	B) 67.4 marks
C) 62.6 marks	D) 64.2 marks

Quantitative Aptitude - Arithmetic Ability Questions

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