Verbal Reasoning - Series Completion

Exercise :: Series Completion - Section 1

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

36.

2,2,5, 13,28,?

 A. 49 B. 50 C. 51 D. 52

Explanation:

The pattern is + 0, + 3, + 8, + 15, ..... i.e. + (l2 - 1), + (22 - 1), + (32 - 1), + (42 - 1), .....

So, missing term = 28 + (52 - 1) = 28 + 24 = 52.

37.

0, 2, 8, 14, ?, 34

 A. 20 B. 23 C. 24 D. 25

Explanation:

The pattern is + 2, + 6, + 6, + 10, + 10,.....

So, missing term = 14 + 10 = 24.

38.

1, 5, 14, 30, 55, 91, ?

 A. 130 B. 140 C. 150 D. 160

Explanation:

The pattern is + 4, + 9, + 16, + 25, + 36, ..... i.e. + 22, + 32, + 42, + 52, + 62,.....

So, missing term = 91 + 72 = 91 + 49 = 140.

39.

In the series 10, 17, 24, 31, 38,.....which of the following will be a number of the series ?

 A. 48 B. 346 C. 574 D. 1003

Explanation:

The given series consists of numbers each of which, on dividing by 7, leaves a

remainder 3. No other number except 346 satisfies the property.

40.

240, ?, 120, 40, 10, 2

 A. 180 B. 240 C. 420 D. 480

Explanation:

The pattern is ÷ 1, ÷ 2, ÷ 3, ÷ 4, ÷ 5.

So, missing term = 240 ÷ 1 = 240.