Logical Reasoning

Sequence & Series

Hard

What should come in the place of the question mark (?) in the following alphanumeric series ? A1X, B4P, E25J, J100F, ?

O289D

O225E

Q289D

Q225E

✅ Correct Option: 3

Term	First letter	Number	Last letter
1	A (1)	$1^2 = 1$	X (24)
2	B (2)	$2^2 = 4$	P (16)
3	E (5)	$5^2 = 25$	J (10)
4	J (10)	$10^2 = 100$	F (6)
5	Q (17)	$17^2 = 289$	D (4)

The positions of the first letters increase by $+1, +3, +5, +7$ , giving Q next. The number is the square of the position of the first letter, so $17^2 = 289$ . The positions of the last letters decrease by $-8, -6, -4, -2$ , giving D next.

Therefore, the missing term is Q289D.

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:

2025: 22 May Shift 1

Select the term that will come next in the following series.

FBA, IGE, LLI, OQM, ?

2023: 24 May Shift 3

Find the missing term?

2026: 6 June Shift 1

Find the missing character from the given options.

2023: 19 June Shift 1

Which letter is 6th to the left of T in the letter series ?

2023: 15 June Shift 2

Find out the wrong number in the sequence:

40960, 10240, 2560, 640, 200, 40, 10

What should come in the place of the question mark (?) in the following alphanumeric series ? A1X, B4P, E25J, J100F, ?

Solution

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CUET General Test Past Year Questions (Topic-Wise)