Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the curved surface area (in cm²) of a hemisphere of diameter 42 cm?

A) 2332 B) 1778
C) 1556 D) 2772
 
Answer & Explanation Answer: D) 2772

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Filed Under: Volume and Surface Area
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Q:

In triangle ABC measure of angle B is 90 deg. If sinA = 24/25, and AB = 1.4cm, then what is the length (in cm) of side BC.

A) 4.8 B) 5
C) 3 D) 5.6
 
Answer & Explanation Answer: A) 4.8

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Q:

The midpoints of AB and AC of a triangle ABC are X and Y respectively. If BC+XY=12 units, then BC­XY is

A) 10 units B) 8 units
C) 6 units D) 4 units
 
Answer & Explanation Answer: D) 4 units

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Q:

The total surface area of a hemisphere is 166.32 sq cm, find its curved surface area?

A) 221.76 sq cm B) 36.96 sq cm
C) 110.88 sq cm D) 55.44 sq cm
 
Answer & Explanation Answer: C) 110.88 sq cm

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Q:

The least number that must be subtracted from 202 to make it a perfect square is

A) 10 B) 8
C) 14 D) 6
 
Answer & Explanation Answer: D) 6

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Filed Under: Problems on Numbers
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Q:

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

A) 7.8 m B) 7.8 m/s
C) 7.8 m-s D) 6.67 m/s
 
Answer & Explanation Answer: B) 7.8 m/s

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Q:

ΔABC is similar to ΔDEF. If the ratio of similar sides is K:1, the ratio of their areas is

A) k2:1 B) 2k:1
C) k22:1 D) 2k2:1
 
Answer & Explanation Answer: A) k2:1

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Q:

Ms. Kavitha borrowed Rs. 950 at 6% per annum simple interest. What amount will she pay to clear her debt after 4 years?

A) 282 B) 1187
C) 1178 D) 228
 
Answer & Explanation Answer: C) 1178

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Filed Under: Simple Interest
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