Aptitude and Reasoning Questions

Q:

One diagonal of a rhombus is half the other. If the length of the side of the rhombus is 20 cm, what is the area of the rhombus?

A) 320 sq cm B) 160 sq cm
C) 240 sq cm D) 360 sq cm
 
Answer & Explanation Answer: A) 320 sq cm

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Q:

If a - b = -6 and a2 + b2 = 44, then ab is

A) -4 B) 8
C) 4 D) -8
 
Answer & Explanation Answer: C) 4

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Q:

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

A) 532 B) 413
C) 111 D) 541
 
Answer & Explanation Answer: C) 111

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Q:

What is the value of √121 + √12321 + √1234321 + √123454321?

A) 12345 B) 123456
C) 12344 D) 123454
 
Answer & Explanation Answer: C) 12344

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Q:

20% of a = b, then b% of 20 is the same as _________ of a.

A) 8% B) 40%
C) 4% D) 80%
 
Answer & Explanation Answer: C) 4%

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Filed Under: Percentage
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Q:

What is the value of tan3A?

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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Q:

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
The centroid of the triangle ABC is at a distance d from the vertex A. What is d equal to ?

A) 15 cm B) 20 cm
C) 20√3 cm D) 30√3 cm
 
Answer & Explanation Answer: C) 20√3 cm

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Q:

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark (?) in figure C.

 

 

A) 61 B) 21
C) 16 D) 81
 
Answer & Explanation Answer: C) 16

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