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Verbal Reasoning - Number Series Aptitude Questions

Verbal Reasoning – Number Series Aptitude Questions and Answers with solutions and Explanations for Bank PO, UPSC, CSAT, MBA, CAT, SSC-CGL, IBPS, Bank Clerical etc.

1.

Find the missing term in the following series:
3, 8, 13, 24, 41, ?
[A]70
[B]75
[C]80
[D]85

70
In the above question, the pattern followed is :
nth term + (n + 1)th term + (n + 1) = (n +2)th term.
Thus, 1st term + 2nd term + 2nd term = 3rd term;
2nd term + 3rd term + 3rd term =4th term and so on.
So, missing term = 6th term = 4th term = 5th term + 5 = 24 + 41 + 5 = 70.

2.

Find the missing term in the following series:
66, 36, 18, ?
[A]3
[B]6
[C]8
[D]9

8
In the above question, each term in the series is the product of the digits of the preceding term. So, missing term = 1 x 8 = 8.

3.

Find the missing term in the following series:
1, 3, 4, 8, 15, 27, ?
[A]37
[B]44
[C]50
[D]55

50
In the above question, the sum of any three consecutive terms of the series gives the next term. So, missing number = 8 + 15 + 27 = 50.

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