6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the reflection of the point (-0.5, 6) in the x-axis?

A) (0.5, -6)	B) (-6, -0.5)
C) (6, -0.5)	D) (-0.5, -6)

Answer & Explanation Answer: D) (-0.5, -6)

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

An octahedron has 6 vertices. How many edges does it have?

A) 8	B) 12
C) 6	D) 10

Answer & Explanation Answer: B) 12

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

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

A) AEIM	B) BFJN
C) CGKO	D) FDKN

Answer & Explanation Answer: D) FDKN

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

Select the odd number from the given alternatives.

A) 1600	B) 2500
C) 3600	D) 4000

Answer & Explanation Answer: D) 4000

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

A) 3 cm	B) 1.5 cm
C) 1 cm	D) 2.5 cm

Answer & Explanation Answer: C) 1 cm

Explanation:

Let, inner radius of cylinder be ‘x’ cm.
4/3 π(6)3 = π × 32 (52 − x2)

or, (4 × 6 × 6 × 6) / (3 × 32) = 25 − x2 or, x2 = 25 − 9
or, x = 4 cm
Hence, thickness = 5 – 4 = 1 cm.

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

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Q:

The rate of working of A and B are in the ratio of 2:3. The number of days taken by them to finish the work is in the ratio:

A) 2:3	B) 4:9
C) 3:2	D) 9:4

Answer & Explanation Answer: C) 3:2

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Filed Under: Time and Work
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

Answer & Explanation Answer: D) 64.2 marks

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The ratio of the volume of two cylinders is 7 : 3 and the ratio of their heights is 7 : 9. If the area of the base of the second cylinder is 154 sq. cm, then what will be the radius (in cm) of the first cylinder?

A) 6√2	B) 6√3
C) 7√2	D) 7√3

Quantitative Aptitude - Arithmetic Ability Questions

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