Logical Reasoning

Sequence & Series

Medium

What number should replace the question mark ?

(A) 72 : 8

(B) 156 : 12

(C) 272 : 16

(D) 600 : ?

Choose the most appropriate answer from the options given below :

✅ Correct Option: 3

Observe the relation: $72 = 8 \times 9$ , $156 = 12 \times 13$ , $272 = 16 \times 17$ . Each first number equals second number multiplied by (second number + 1). So for $600 = x(x+1)$ , solve $x^2 + x - 600 = 0$ , giving $x = 24$ since $24 \times 25 = 600$ .

2026: 18 May Shift 1

In the following question, a letter-number series is given with one or more terms missing as shown by (?). Choose the missing term out of the given alternatives.

D4W, H9T, L16Q, P25N, ...?..

2026: 21 May Shift 1

What will be the 21st term of the series given below ?

3, 9, 15, ........

2026: 22 May Shift 2

Find the next term in the alphanumeric series:

B7A, F8F, J11K, N16P, ?

2026: 31 May Shift 1

Arrange the statements in proper logical sequence.

A. The pattern continues by multiplying the number by 3.

B. Therefore, The next number must be 324.

C. The given series is 4, 12, 36, 108, ?

D. Middle term is the geometric mean of its previous and next term.

Choose the correct answer from the options given below:

2026: 18 May Shift 2

In the given question, a letter-number series is given with one or more terms missing as shown by (?). Choose the missing term out of the given alternatives.

A196, I169, P144, V121, A100, ...?...

2025: 19 May Shift 1

The missing term in the following series is:

N5V, K7T, ?, E14P, B19N

What number should replace the question mark ? (A) 72 : 8 (B) 156 : 12 (C) 272 : 16 (D) 600 : ? Choose the most appropriate answer from the options given below :

Solution

Related questions:

Keyboard Shortcuts

CUET General Test Past Year Questions (Topic-Wise)

What number should replace the question mark ?

(A) 72 : 8

(B) 156 : 12

(C) 272 : 16

(D) 600 : ?

Choose the most appropriate answer from the options given below :