Logical Reasoning

Sequence & Series

Medium

In the following question, an alphanumeric series is given as

5FU, 9IS, 13LQ, ?, 21RM

Choose the missing term (?) out of the given alternatives.

17PO

17ON

17OO

17PQ

✅ Correct Option: 3

The numbers rise by 4: 5, 9, 13, 17, 21.

The first letters move forward 3 places: F, I, L, O, R.

The second letters move backward 2 places: U, S, Q, O, M.

So the missing term is 17OO.

2025: 27 May Shift 2

Find the missing term in the series:

B12D, G32I, L52N, ?, V92X

2023: 28 May Shift 1

What is missing term in given series ?

2025: 13 May Shift 1

What will come in place of the question mark in the following numerical series?

6, 9, 14, 21, 30, ?

2022: 23 Aug Shift 1

Find the odd number in the series 63, 48, 34, 24, 15, 8, 3

2023: 30 May Shift 3

Find the missing term in 1, 4, 10, 22, 46, _________ ?

2023: 7 June Shift 1

Choose the missing terms out of given alternatives :

A3, E4, I10, O33, U136, ?

Solution