Logical Reasoning

Sequence & Series

Medium

Study the series given below and locate the number that is missing:

5, 10, 17, 26, ____

✅ Correct Option: 1

The given series is: $5, 10, 17, 26, \_\_\_\_$

Finding the differences between consecutive terms:

$10 - 5 = 5$

$17 - 10 = 7$

$26 - 17 = 9$

The differences form the sequence: $5, 7, 9$

The differences increase by $2$ each time, forming an arithmetic progression.

The next difference in the pattern:

$9 + 2 = 11$

The missing number:

$26 + 11 = 37$

Therefore, the missing number is $37$ .

2025: 13 May Shift 1

Find the term which doesn't fit into the series given below:

H4Q, K10N, N20K, Q43H, T90E

2022: 8 Aug Shift 1

Complete the series;

7, 23, 95, 479, 2879, ....

2026: 29 May Shift 1

In given of the following question, find the term which does not fit into the series :

1CV, 5FU, 9IT, 13LS, 17PQ

2026: 14 May Shift 1

Select the set of letters that when sequentially placed in the blanks of the given letter series will complete the series.

f _ hg _fh _ g

A. g

B. f

C. h

Choose the correct answer from the options given below:

2023: 15 June Shift 2

Find the next term in the alpha-numeric series:

Z1A, W8C, T27E, Q64G, N125I, ?

2026: 31 May Shift 1

A series is given, in which one term is missing. Choose the correct alternatives from the given ones that will complete the series:

C4, B9, F25, C49, ? , D169

Solution