Aptitude and Reasoning Questions

Q:

If the standard deviation of a population is 7, what would be the population variance?

A) 14 B) 21
C) 49 D) 28
 
Answer & Explanation Answer: C) 49

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Filed Under: Probability
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Q:

A river connects two towns A and B. It flows 37 miles South from town A, then it turns West and flows 23 miles, then it turns North and flows 40 miles, then it turns to its right and flows 23 miles to reach town B. Where is town A with respect to town B?

 

A) 3 miles South B) 13 miles South
C) 3 miles North D) 13 miles North
 
Answer & Explanation Answer: A) 3 miles South

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Filed Under: Direction Sense Test
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Q:

ΔABC is isosceles having AB = AC and ∠A = 40°. Bisectors PO and OQ of the exterior angles ∠ABD and ∠ACE formed by producing BC on both sides, meet at O. Then the value of ∠BOC is

A) 70° B) 110°
C) 80° D) 55°
 
Answer & Explanation Answer: A) 70°

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

What are the co-ordinates of the centroid of a triangle, whose vertices are A(2 , 5), B(-4 , 0) and C(5 , 4)?

A) (-1 , 3) B) (1 , 3)
C) (1 , -3) D) (-1 , -3)
 
Answer & Explanation Answer: B) (1 , 3)

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

In an isosceles triangle ABC, AB = AC and ∠A = 80°. The bisector of ∠B and ∠C meet at D. The ∠BDC is equal to

A) 90° B) 100°
C) 130° D) 80°
 
Answer & Explanation Answer: C) 130°

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

In the following question, correct the equation by interchanging two signs.

9 x 3 + 8 ÷ 4 – 7 = 28

A) x and – B) + and –
C) ÷ and + D) x and ÷
 
Answer & Explanation Answer: D) x and ÷

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Q:

If EARTHQUAKE is coded as EKAUQHTRAE then ELECTORATE will be coded as ?

A) ETAROELECT B) EARTOTCELE
C) ETAROTCELE D) ETAROCTELE
 
Answer & Explanation Answer: D) ETAROCTELE

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Q:

The question below, there is a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true. Then consider the 2 conclusion together and decide which of them follows beyond a reasonable doubt from the information given in the statement.

Statement: High pressure boilers are hazardous pieces of equipment, which are strictly regulated with special laws.

Conclusions:

I. If not regulated, high pressure boilers will be easily available in the market

II. High pressure boilers are rare.

A) Only conclusion I follows B) Only conclusion II follows
C) Both conclusion I and II follows D) Neither conclusion I nor II follows
 
Answer & Explanation Answer: D) Neither conclusion I nor II follows

Explanation:

The statement says that the high pressure boilers arehazardousand that’s why they are strictly regulated with special laws. Conclusion 1 talks about availability although the statement does not relate to the availability. Conclusion 2 talks about the rarity of high pressure boilers although the statement does not mention it anywhere.

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