Q. Which is the next number in the series: 4, 9, 19, 39, 79, ___?
✅ Correct Answer: (A)
159
Explanation: Pattern: ×2 + 1 → 79 × 2 + 1 = 159.
Explanation by: Mr. Dubey
Pattern: ×2 + 1 → 79 × 2 + 1 = 159.