Logical Reasoning

Sequence & Series

Easy

Arrange the following in meaningful sequence:

A. Key

B. Door

C. Lock

D. Room

Choose the most appropriate answer from the options given below:

A, C, B, D

D, C, A, B

B, A, D, C

C, B, D, A

✅ Correct Option: 1

Logical sequence: First we take the Key (A), then we use it to open the Lock (C), which is on the Door (B), and finally we enter the Room (D).

Correct order: A, C, B, D.

2025: 3 June Shift 1

Find the next term in the alpha-numeric series:

Z3A, W7E, T15I, Q31M, N63Q, ?

2025: 23 May Shift 1

What should come next in the series below?

45G54, 47J57, 50N61, 54S66, ?

2026: 24 May Shift 1

Find the missing number in the series:

5 15 9 ? 11 33 13 39

2026: 12 May Shift 2

In the following series, some of the letters are missing. Identify the sequence of letters from the given options which will complete the series.

m n o n o _ q o p q r _ p _ rs _ u

(A) p

(B) q

(D) t

Choose the correct sequence answer from the options given below:

2022: 8 Aug Shift 1

Complete the series;

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

2026: 30 May Shift 1

Find the next term (?) in the given series:

1, 3, 6, 10, 15, ?, ...

Solution