What number comes next in the series: 15, 23, 31, 39, 47, ?

💡 Solution & Explanation

Each term is 8 more than the one before it: 23 − 15 = 8, 31 − 23 = 8, 39 − 31 = 8, 47 − 39 = 8. So the next term is 47 + 8 = 55.