SSC GD 2025 PYQ — Question 69

SSC GD Const 2025 (English) - 20 Feb 2025 - Shift 1 • Reasoning • Q69

What should come in place of the question mark (?) in the given series?

120, 361, 1084, 3253, 9760, ?

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. 29281.

Given: 120, 361, 1084, 3253, 9760, ?

Logic: Each term = Previous term × 3 + 1

120 × 3 + 1 = 360 + 1 = 361

361 × 3 + 1 = 1083 + 1 = 1084

1084 × 3 + 1 = 3252 + 1 = 3253

3253 × 3 + 1 = 9759 + 1 = 9760

9760 × 3 + 1 = 29280 + 1 = 29281