What number comes next in the series: 7, 12, 22, 42, 82, ?

💡 Solution & Explanation

Each term is the previous term × 2 − 2: 7 × 2 − 2 = 12, 12 × 2 − 2 = 22, 22 × 2 − 2 = 42, 42 × 2 − 2 = 82. So the next term is 82 × 2 − 2 = 162.