What will be the next number in the following series? 0, 7, 26, 63, 124, ?

Show answer & explanation

Answer: (C) 215

Explanation

Each term is n³ − 1: 1 − 1 = 0, 8 − 1 = 7, 27 − 1 = 26, 64 − 1 = 63, 125 − 1 = 124. Next: 216 − 1 = 215.