Sawaal
513
Q:

What should come in place of question mark (?) in the following number series?

 132       156       ?         210          240          272 

A) 196 B) 182
C) 199 D) 204

Answer:   B) 182



Explanation:

The given series follows a logic that

11 x 12, 12 x 13, 13 x 14, 14 x 15, 15 x 16,...

So the missing number is 13 x 14 = 182

Subject: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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A) 9 B) 12
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Answer & Explanation Answer: A) 9

Explanation:

The given sequence is a combination of three series:
i)1st, 4th, 7th terms i.e, 2, 4, 9
ii)2nd, 5th, 8th terms i.e, 3, 6, 12
iii)3rd, 6th, 9th terms i.e, 4, 8, 16
In each one of i, ii, iii, each term is twice the preceding term.
So, 9 is wrong and must be replaced by (4*2) = 8

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Answer & Explanation Answer: A) 39

Explanation:

The correct pattern is *2+1
So, 39 is wrong and must be replaced by (15 * 2 + 1) = 31

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Find out the wrong term in the series 125, 126, 124, 127, 123, 129

A) 129 B) 125
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Answer & Explanation Answer: A) 129

Explanation:

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Q:

Find out the wrong term in the series 2, 5, 10, 50, 500, 5000

A) 5000 B) 500
C) 10 D) 50
 
Answer & Explanation Answer: A) 5000

Explanation:

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So, 5000 is wrong and it must be replaced by (500*50) = 25000

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Find out the wrong term in the series 83,92,85,90,85,88

A) 85 B) 88
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Answer & Explanation Answer: A) 85

Explanation:

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So,85 is wrong term and must be replaced by 90-3=87

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Q:

Find out the wrong term in the series 4,8,15,25,36,54

A) 28 B) 38
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Answer & Explanation Answer: B) 38

Explanation:

The correct pattern is +4,+7,+10,+13,+16
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Q:

Find out the wrong term in the series 169,144,121,100,85,64

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Answer & Explanation Answer: C) 85

Explanation:

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So,85 is wrong term and must be replaced by 9*81

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10 6271
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in the series 31,45,35,47,39,x,43,51,47,53

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Answer & Explanation Answer: B) 49

Explanation:

The given sequence is a combination of two series
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