Sawaal
8
Q:

What is the next number in this series ? 

4, 6, 12, 18, 30, 42, 60, ?

A) 71 B) 72
C) 73 D) 69

Answer:   B) 72



Explanation:

With close observation, you will note that each number in the list is in the middle of two prime numbers. Thus:

4 is in the middle of 3 and 5, 6 is in the middle of 5 and 7, 12 is in the middle of 11 and 13, 18 is in the middle of 17 and 19, 30 is in the middle of 29 and 31. 42 is in the middle of 41 and 43, 60 is in the middle of 59 and 61.

Therefore, the next number would be the one that is in the middle of the next two prime numbers, which is 72 (which is in the middle of 71 and 73).

Subject: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO
Related Questions
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

33 41659
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

29 34416
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

47 56693
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

19 35029
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

38 44829
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

62 65077
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.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

83 105971
Q:

Find out the wrong number in the series.

7, 8, 18, 57, 228, 1165, 6996

A) 8 B) 18
C) 57 D) 228
 
Answer & Explanation Answer: D) 228

Explanation:

Let the given numbers be A, B, C, D, E, F, G.

Then, A, A x 1 + 1, B x 2 + 2, C x 3 + 3, D x 4 + 4, E x 5 + 5, F x 6 + 6 are the required numbers.

Clearly, 228 is wrong.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

33 41868