6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the slope of the line perpendicular to the line passing through the points (-2, 3) and (2, 0)?

A) 4/3	B) 3/4
C) -3/4	D) -4/3

Answer & Explanation Answer: A) 4/3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

26% of a number is 65. What is the number?

A) 50	B) 250
C) 260	D) 40

Answer & Explanation Answer: B) 250

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

On a ground , there is a vertical tower with a flagpole on its top . At a point 9 m away from the foot of the tower , the angles of elevation of the top and bottom of the flagpole are 60° and 30° respectively . The height of the flagpole is

A) 5√3 m	B) 6√3 m
C) 6√2m	D) 6√5 m

Answer & Explanation Answer: B) 6√3 m

Explanation:

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Filed Under: Height and Distance
Exam Prep: Bank Exams

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Q:

The amount (in Rs) received at 10% per annum compound interest after 3 yrs is Rs 1,19,790. What was the principal?

A) 90000	B) 1,00,000
C) 80000	D) 75000

Answer & Explanation Answer: A) 90000

Explanation:

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

If the difference between the roots of the equation ${Ax}^{2} - Bx + C = 0$ is 4, then which of the following is TRUE?

A) B2 – 16A2 = 4AC + 4B2	B) B2 – 10A2 = 4AC + 6A2
C) B2 – 8A2 = 4AC + 10A2	D) B2 – 16A2 = 4AC + 8B2

Answer & Explanation Answer: B) B2 – 10A2 = 4AC + 6A2

Explanation:

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Filed Under: Simplification
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Q:

Find two natural numbers whose sum is 85 andtheleast common multiple is 102.

A) 30 & 55	B) 17 & 68
C) 35& 55	D) 51 & 34

Answer & Explanation Answer: D) 51 & 34

Explanation:

Let a + b = 85→b = 85 –a

LCM(a,b) =102→ab = 102

k→a(85 –a) = 102k, where k is a natural number.

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

Find the number of prime factor of 1024.

A) 9	B) 10
C) 11	D) 12

Answer & Explanation Answer: B) 10

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

A boy crosses a 300 metres wide road in 30 seconds. What is his speed (in km/hr)?

A) 18	B) 54
C) 36	D) 27

Quantitative Aptitude - Arithmetic Ability Questions

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