[A]. 7
[B]. 15
[C]. 27
[D]. 63
✅ The correct answer is option C.
Go on multiplying the number by 2 and adding 1 to it to get the next number.
So, 27 is wrong.
Go on multiplying the number by 2 and adding 1 to it to get the next number.
So, 27 is wrong.