Correct Answer & Explanation
Option A
The pattern follows n³ - 1 for n = 2, 3, 4, 5, 6, 7:
2³ - 1 = 8 - 1 = 7
3³ - 1 = 27 - 1 = 26 (given as 28)
4³ - 1 = 64 - 1 = 63
5³ - 1 = 125 - 1 = 124
6³ - 1 = 216 - 1 = 215
7³ - 1 = 343 - 1 = 342
• Hence, the wrong number in the series is 28.