What comes next: 1, 3, 8, 19, 42, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 89.
Given series: 1, 3, 8, 19, 42, ?
1 × 2 + 1 = 3,
3 × 2 + 2 = 8,
8 × 2 + 3 = 19,
19 × 2 + 4 = 42,
42 × 2 + 5 = 89
SSC CGL - 14 Sep 2025 - Shift 1 • Reasoning • Q93
What comes next: 1, 3, 8, 19, 42, ?
Correct answer: A
Explanation
The correct answer is option 1 i.e. 89.
Given series: 1, 3, 8, 19, 42, ?
1 × 2 + 1 = 3,
3 × 2 + 2 = 8,
8 × 2 + 3 = 19,
19 × 2 + 4 = 42,
42 × 2 + 5 = 89