Sign in
Please select an account to continue using cracku.in
↓ →
Select the option that will correctly replace the question mark (?) in the series.
6, 21, 51, 96, ?
Consecutive multiples of 15 are added.
6 + 15 = 21
21 + 30 = 51
51 + 45 = 96
96 + 60 = 156
=> Ans - (A)
Create a FREE account and get: