6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.

A) 700	B) 800
C) 750	D) 850

Answer & Explanation Answer: D) 850

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1720

Q:

Out of the 60 students of a class, 29 took Mathematics, 32 took Biology and 8 took none of the two subjects. How many students took both Mathematics and Biology?

A) 8	B) 9
C) 7	D) 6

Answer & Explanation Answer: B) 9

Explanation:

Number of students who took only Mathematics n(m) = 29
Number of students who took only biology n(b) = 32
Total number of students n(t) = 60
Total number of students of both mathematics and biology n(m b) = 60 - 8 = 52
Total number of students who took both = 32 + 29 - 52 = 9

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

0 1720

Q:

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area(in cm2) of the triangle?

A) 50√5	B) 100
C) 75√7	D) 175

Answer & Explanation Answer: C) 75√7

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The average of 15 numbers is 7. If the average of the first 8 numbers is 6.5 and the average of the last 8 numbers is 8.5 then middle number is

A) 10	B) 23
C) 13	D) 15

Answer & Explanation Answer: D) 15

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Some carpenters promised to do a job in 15 days but 3 of them were absent and remaining did the job in 20 days. What was the original number of carpenters?

A) 10	B) 15
C) 12	D) 14

Answer & Explanation Answer: C) 12

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Filed Under: Time and Work
Exam Prep: Bank Exams

2 1720

Q:

In what ratio tea at Rs 240/kg should be mixed with tea at Rs 280/kg so that on selling the mixture at Rs 324/kg there is a profit of 20%?

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

Answer & Explanation Answer: C) 1 : 3

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

3 1720

Q:

What is the simplified value of $[(\sec^{3} x - \tan^{3} x) / (\sec x - \tan x)] - 2 \tan^{2} x - \sec x \tan x ?$

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

Answer & Explanation Answer: D) 1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 1719

Q:

In the given figure, PQRS is a square of side 20 cm and SR is extended to point T. If the length of QTis 25 cm, then what is the distance (in cm) between the centers O1 and O2 of the two circles?

A) 5√10	B) 4√10
C) 8√5	D) 16√2

Quantitative Aptitude - Arithmetic Ability Questions

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