Aptitude and Reasoning Questions

Q:

If the mean of m observations out of n observations is n and the mean of remaining observations is m, then what is the mean of all n observations?

A) 2m –m^2/n B) 2m –m/n
C) 2m D) 2m –m
 
Answer & Explanation Answer: A) 2m –m^2/n

Explanation:

Mean of m observations is n

Mean of n-m observations is m

So total = nm+ (n-m)m

Total observations = n

Mean = Total / Total observations = (2mn-m^2)/n = 2m –m^2/n

 

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If "A" denotes "multiplied by", "B" denotes "subtracted from", "C" denotes "added to" and "D" denotes "divided by", then

7 B 17 C 88 D 11 A 6 = ?

A) 27 B) 28
C) 38 D) 26
 
Answer & Explanation Answer: C) 38

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

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Q:

Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

A) A B) B
C) C D) D
 
Answer & Explanation Answer: A) A

Explanation:
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Filed Under: Paper Folding

5 2819
Q:

How much does a gallon of water weigh?

A) 2.741 kgs B) 2.956 kgs
C) 3.418 kgs D) 3.785 kgs
 
Answer & Explanation Answer: D) 3.785 kgs

Explanation:

1 Gallon = 3.785 kgs

Gallon is a unit of measurement of liquid.

We know that 1 gallon = 3.785 liters

But we know that,

1 cubic meter = 1000 lit or 1000 kgs

=> 1 lit = 1 kg

Hence,  1 gallon = 3.785 lit = 3.785 kgs.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

A man introduces a lady as the daughter of the daughter of the father of his uncle. His uncle has only one sibling. The lady is the man's __.

A) Mother B) Paternal Aunt
C) Sister D) Daughter
 
Answer & Explanation Answer: C) Sister

Explanation:
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Filed Under: Blood Relations
Exam Prep: Bank Exams

50 2815
Q:

Price of petrol increased from Rs 60/liter to Rs 75/liter. How much should the consumption of petrol be reduced (in %) so as to increase expenditure by only 10%?

A) 12 B) 20
C) 15 D) 18
 
Answer & Explanation Answer: A) 12

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

?, WX, AB, FG

A) TU B) XW
C) PQ D) UV
 
Answer & Explanation Answer: A) TU

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

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Q:

A group of six cousins are sitting around a hexagonal table, each one at one corner of the hexagon. (facing the centre inside) Raju is sitting opposite to Rohan. Sweety is sitting next to Navya. Aadya is sitting opposite to Navya, but not next to Kalyan. Karthik has a person sitting between Rohan and himself. If Sweety sits to the right of Karthik, then who is sitting to the left of Karthik ?

A) Aadya B) Kalyan
C) Raju D) Rohan
 
Answer & Explanation Answer: C) Raju

Explanation:

Suppose Sweety is sitting between Rohan and Karthik such that she is to the right of him.....then as Raju is opposite to Rohan then Raju must be to the left of Karthik.

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Filed Under: Logic
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

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