Aptitude and Reasoning Questions

Q:

Find out the wrong number in the given sequence of numbers.

1, 2, 6, 15, 31, 56, 91

A) 31 B) 91
C) 56 D) 15
 
Answer & Explanation Answer: B) 91

Explanation:

1, 1 + 12 = 2, 2 + 22 = 6, 6 + 32 = 15, 15 + 42 = 31, 31 + 52 = 56, 56 + 62 = 92

Last number of given series must be 92 not 91.

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Filed Under: Odd Man Out

54 125654
Q:

Find the odd number in the following number series?

24, 4, 13, 41, 151, 640

A) 4 B) 640
C) 41 D) 13
 
Answer & Explanation Answer: C) 41

Explanation:

The given number series follows the pattern that,

 

24×0 + 4  = 4  

 

4×1  + 9   = 13

 

13×2 + 16 = 42

 

42×3 + 25  = 151

 

151×4 + 36 =  640

 

Therefore, the odd number in the given series is 41

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Filed Under: Odd Man Out
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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28 125600
Q:

Choose the word which gives similar meaning to the given word from the following options.

'Autopsy'

A) Diagnosis B) Rebuild
C) Manufacture D) Postmortem
 
Answer & Explanation Answer: D) Postmortem

Explanation:

Autopsy is the medical term for postmortem.

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Filed Under: Analogy
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49 124572
Q:

Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:

A) 40 B) 80
C) 120 D) 200
 
Answer & Explanation Answer: A) 40

Explanation:

Let the numbers be 3x, 4x and 5x.

 

Then, their L.C.M. = 60x.

 

So, 60x = 2400 or x = 40.

 

 The numbers are (3 x 40), (4 x 40) and (5 x 40).

 

Hence, required H.C.F. = 40.

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Filed Under: HCF and LCM

435 123670
Q:

In the following question, select the missing number from the given series.
 
102, 85, 68, 51, ?

A) 34 B) 40
C) 37 D) 31
 
Answer & Explanation Answer: A) 34

Explanation:
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Filed Under: Number Series

12 123235
Q:

One word substitution:

Commencement of words with the same letter.

A) Alliteration B) Oxymoron
C) Pun D) Transferred epithet
 
Answer & Explanation Answer: A) Alliteration

Explanation:

Alliteration is the one-word substitute for Commencement of words with the same letter.

 

Alliteration is a figure of speech which is identified as the occurrence of the same letter or sound at the beginning of adjacent or closely connected words.

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34 122017
Q:

What letter will come in place of question mark ?

L    J    H

J    P    D

P    ?    E

A) K B) L
C) P D) I
 
Answer & Explanation Answer: D) I

Explanation:

Sum of place value in a row is 30.

So the letter which comes in place of '?' is 'I'

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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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81 121142
Q:

3125  256  ?  4  1

Which number replaces the "?" in the question?

A) 27 B) 128
C) 32 D) 64
 
Answer & Explanation Answer: A) 27

Explanation:

In the given series numbers are arranged following the rule,

55,44, 33, 22, 11

 Therefore, the missing number is 27.

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Filed Under: Odd Man Out
Exam Prep: CAT
Job Role: Bank PO

18 120793