Aptitude and Reasoning Questions

Q:

The average revenues of 13 consecutive years of a company is Rs 78 lakhs. If the average of first 7 years is Rs 73 lakhs and that of last 7 years is Rs 85 lakhs, what is the revenue for the 7th year?

A) Rs 94 lakhs B) Rs 90 lakhs
C) Rs 88 lakhs D) Rs 92 lakhs
 
Answer & Explanation Answer: D) Rs 92 lakhs

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Filed Under: Average
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Q:

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

A) 56 B) 72
C) 90 D) 64
 
Answer & Explanation Answer: D) 64

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Q:

A regular square pyramid has side of its base 20 cm and height 45 cm is melted and recast into regular triangular pyramids of equilateral base of side 10 cm and height 10√3 cm. What are the total numbers of regular triangular pyramid?

A) 24 B) 20
C) 27 D) 28
 
Answer & Explanation Answer: A) 24

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Filed Under: Volume and Surface Area
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Q:

Find the perimeter (in cm) of a semicircle of radius 14 cm.

A) 144 B) 46
C) 72 D) 92
 
Answer & Explanation Answer: C) 72

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Q:

The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)

A) 38808 cubic cms B) 9702 cubic cms
C) 19404 cubic cms D) 29106 cubic cms
 
Answer & Explanation Answer: C) 19404 cubic cms

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Q:

Three angles of a quadrilateral are 60°,90°and 100°. Then the fourth angle of the quadrilateral is

A) 95° B) 100°
C) 110° D) 115°
 
Answer & Explanation Answer: C) 110°

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Q:

What is the simplified value of (cosec A + sin A)(cosec A – sin A)?

A) cos2A + cot2A B) 2 cos2A
C) 2 cot2A D) 2 cos A cot A
 
Answer & Explanation Answer: A) cos2A + cot2A

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Q:

The internal bisectors of ∠Q and ∠R of triangle PQR meet at O. If ∠P = 70°, then what is the measure of ∠QOR (in degrees)?

A) 110 B) 115
C) 125 D) 135
 
Answer & Explanation Answer: C) 125

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Filed Under: Volume and Surface Area
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