99, 80, 64, 48, 35, 24
Answer & Explanation Option: [D]
The wrong number from the given series is 64. It is replaced by 63
102 - 1 = 99
92 - 1 = 80
82 - 1 = 63
72 - 1 = 48
62 - 1 = 35
52 - 1 = 24