Find the next number: 3, 8, 18, 38, 78, _____?
- 148
- 158
- 168
- None of these
Explanation
Pattern: Multiply by 2 and add 2.
- 3 × 2 + 2 = 8
- 8 × 2 + 2 = 18
- 18 × 2 + 2 = 38
- 38 × 2 + 2 = 78
- 78 × 2 + 2 = 158
Last verified on 17-10-2026
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