Quantitative Aptitude - Arithmetic Ability Questions

Q:

The sum of a fraction and 3 times its reciprocal is 31/6. What is the fraction?

A) 2/9 B) 9/2
C) 5/4 D) 4/5
 
Answer & Explanation Answer: B) 9/2

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Q:

If the diameter of a circle is 35 cm, then what will be its circumference (in cm)?

A) 110 B) 220
C) 21 D) 42
 
Answer & Explanation Answer: A) 110

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Filed Under: Volume and Surface Area
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Q:

A cone of height 12 cm and diameter 10 cm is mounted on a hemisphere of the same diameter. What is the volume of the solid thus formed?

A) 384.13 sq cm B) 576.19 sq cm
C) 192.06 sq cm D) 288.1 sq cm
 
Answer & Explanation Answer: B) 576.19 sq cm

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Filed Under: Volume and Surface Area
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Q:

Find the curved surface area (in cm2) of a hemisphere of diameter 7 cm.

A) 88 B) 55
C) 77 D) 66
 
Answer & Explanation Answer: C) 77

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Q:

The surface area of a sphere is 5544 cm2. Find its diameter (in cm).

A) 42 B) 21
C) 84 D) 63
 
Answer & Explanation Answer: A) 42

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Filed Under: Volume and Surface Area
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Q:

In a triangle ABC, if A +C = 140° and A + 3B = 180°, then A is equal to

A) 80° B) 40°
C) 60° D) 20°
 
Answer & Explanation Answer: C) 60°

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Q:

One internal angle of a rhombus of side 12 cm is 120°. What is the length of its longer diagonal?

A) 6√3 cm B) 12√2 cm
C) 6√2 cm D) 12√3 cm
 
Answer & Explanation Answer: D) 12√3 cm

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Filed Under: Volume and Surface Area
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Q:

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits. What is the number?

A) 83 B) 64
C) 46 D) 38
 
Answer & Explanation Answer: D) 38

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Filed Under: Problems on Numbers
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