6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 198, then what is the difference between the first and the third number?

A) 216	B) 297
C) 661	D) 431

Answer & Explanation Answer: A) 216

Explanation:

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Filed Under: Average
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:

Find the maximum area of a rectangular field which is surrounded by a rope of 100 meters?

A) 500 sq.m	B) 325 sq.m
C) 400 sq.m	D) 100 sq.m

Answer & Explanation Answer: C) 400 sq.m

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

A) √2	B) 2
C) 1/√2	D) 1/2

Answer & Explanation Answer: A) √2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If secA - tanA = x, then the value of x is

A) √[(1 + sinA)/(1 - sinA)]	B) √[(1-sinA)/(1+sinA)]
C) (1-sinA)/(1+sinA)	D) (1 + sinA)/(1 - sinA)

Answer & Explanation Answer: B) √[(1-sinA)/(1+sinA)]

Explanation:

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

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Q:

If $\frac{3 a + 4 b}{3 c + 4 d} = \frac{3 a - 4 b}{3 c - 4 d}$ , then

A) ab = cd	B) ad = bc
C) ac = bd	D) a = b = c ≠ d

Answer & Explanation Answer: B) ad = bc

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

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

A) Affluent	B) Rich
C) Prestigious	D) Well-to-do

Answer & Explanation Answer: C) Prestigious

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1699

Q:

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

A) Magenta	B) Maroon
C) Turquoise	D) Picasa

Quantitative Aptitude - Arithmetic Ability Questions

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