Logical Reasoning

Sequence & Series

Easy

Find the missing term in given series:

1, 9, 25, 49, 81, ?, 169

144

121

✅ Correct Option: 3

Series is squares of consecutive odd numbers: $1^2, 3^2, 5^2, 7^2, 9^2, 11^2, 13^2$ $= 1, 9, 25, 49, 81, 121, 169$ . Missing term $= 121$ .

2026: 29 May Shift 2

An alphanumeric series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

D2, E6, H21, M88, ?

2025: 13 May Shift 1

Find the missing number from the given alternatives.

6	10	14
9	15	21
12	20	?

2022: 20 Aug Shift 1

Complete the series :

7, 11, 13, 17, 19, ......

2025: 21 May Shift 1

Find the next term in the following alphanumeric series:

C12W, D20O, G30I, L42E, ?

2026: 21 May Shift 2

Which term will replace the question mark (?) in the alphanumeric series given below?

B1, E2, H6, K21, ?, Q445

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

Solution