Logical Reasoning

Sequence & Series

Hard

Find the next term in the alpha-numeric series D4T, F9R, H20P, J43N.

L 90 M

N 90 N

L 90 L

J 90 L

✅ Correct Option: 3

First letters: D, F, H, J, L (each +2).

Last letters: T, R, P, N, L (each -2).

Middle numbers: 4, 9, 20, 43. Pattern: each term = previous x 2 + (1, 2, 3, 4). So 4 x 2 + 1 = 9, 9 x 2 + 2 = 20, 20 x 2 + 3 = 43, 43 x 2 + 4 = 90.

Next term: L 90 L.

2023: 1 June Shift 1

Fill up the gap with proper group of alphabets.

I K M J L N K M O ?

2022: 26 Aug Shift 1

Complete the series: 39, 8, 15, 24, 35______.

2026: 31 May Shift 2

Select the missing number from the below options.

28	18	50
17	13	11
31	22	?

2025: 22 May Shift 2

Select the combination of letters that when sequentially placed from left to right in the gaps of the given letter series will complete the series.

cc__ceecde_ _ _ccde_ee

2022: 17 Aug Shift 1

Find the missing number from the following given option:

2025: 13 May Shift 2

Choose the missing term in the following alphanumeric series from the given alternatives:

2A11, 4D13, 12G17, ______, 240M31

Solution