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377
Q:

Insert the missing number.

7, 26, 63, 124, 215, 342, (....)

A) 391 B) 421
C) 481 D) 511

Answer:   D) 511



Explanation:

Numbers are (23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1) etc.

So, the next number is (83 - 1) = (512 - 1) = 511.

Subject: Odd Man Out
Related Questions
Q:

Insert the missing number.

16, 33, 65, 131, 261, (....)

A) 523 B) 521
C) 613 D) 721
 
Answer & Explanation Answer: A) 523

Explanation:

Each number is twice the preceding one with 1 added or subtracted alternatively.

So, the next number is (2 x 261 + 1) = 523.

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38 143586
Q:

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

36, 54, 18, 27, 9, 18.5, 4.5

A) 4.5 B) 18.5
C) 54 D) 18
 
Answer & Explanation Answer: B) 18.5

Explanation:

The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.

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33 41377
Q:

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

6, 13, 18, 25, 30, 37, 40

A) 25 B) 30
C) 37 D) 40
 
Answer & Explanation Answer: D) 40

Explanation:

The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.

So, 40 is wrong.

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29 34311
Q:

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

582, 605, 588, 611, 634, 617, 600

A) 634 B) 611
C) 605 D) 600
 
Answer & Explanation Answer: A) 634

Explanation:

Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.

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47 56544
Q:

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

5, 16, 6, 16, 7, 16, 9

A) 9 B) 7
C) 6 D) None of these
 
Answer & Explanation Answer: A) 9

Explanation:

Terms at odd places are 5, 6, 7, 8 etc. and each term at even place is 16.

So, 9 is wrong.

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19 34830
Q:

Find the odd man out.

253, 136, 352, 324, 631, 244

A) 324 B) 136
C) 352 D) 631
 
Answer & Explanation Answer: A) 324

Explanation:

The Sum of the digits in each number, Except 324 is 10.

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38 44524
Q:

Find the odd man out.

331, 482, 551, 263, 383, 362, 284

A) 263 B) 383
C) 331 D) 551
 
Answer & Explanation Answer: B) 383

Explanation:

In each number except 383, the product of first and third digits is the middle one.

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62 64795
Q:

Find the odd man out.

6, 9, 15, 21, 24, 28, 30

A) 28 B) 21
C) 24 D) 30
 
Answer & Explanation Answer: A) 28

Explanation:

Each of the numbers except 28, is a multiple of 3.

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83 105733