Aptitude and Reasoning Questions

Q:

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.

Herringbone

A) Biner B) None
C) Bane D) Hinge
 
Answer & Explanation Answer: C) Bane

Explanation:
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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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Q:

If (1 - cosA)/2 = x, then the value of x is

A) cos^2(A/2) B) √sin(A/2)
C) √cos(A/2) D) sin^2(A/2)
 
Answer & Explanation Answer: D) sin^2(A/2)

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Q:

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)

A) 144 B) 49
C) 98 D) 72
 
Answer & Explanation Answer: D) 72

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Q:

Find the value of 'y' if y84 = 225

A) 10 B) 12
C) 15 D) 18
 
Answer & Explanation Answer: C) 15

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

tan3A is equal to

A) 3tanA -­ tan3A(1 -­ 3tan2A) B) 3tanA + tan3A(1 -­ 3tan2A)
C) 3tanA -­ tan3A(1 + 3tan2A) D) 3tanA + tan3A(1 + 3tan2A)
 
Answer & Explanation Answer: A) 3tanA -­ tan3A(1 -­ 3tan2A)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Simple interest on a sum for 5 years is equal to 20% of the principal. In how many years interest will be equal to the principal?

A) 20 B) 25
C) 15 D) 16
 
Answer & Explanation Answer: B) 25

Explanation:
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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

How many three digit numbers are there in which all the digits are odd?

A) 100 B) 125
C) 500 D) 250
 
Answer & Explanation Answer: B) 125

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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