select the number that can replace the question mark (?) in the following series.
3, 6, 5, 12, ?, 24, 11, 48, 13

Correct option is B

Given Series:
3, 6, 5, 12, ?, 24, 11, 48, 13
Let's separate the series into two interleaved sequences:
Sequence 1: 3, 5, ?, 11, 13
Sequence 2: 6, 12, 24, 48
Separating the Series:
Odd Indexes (Prime Numbers):3, 5, ?, 11, 13
These are the prime numbers: 3, 5, 7, 11, 13.
The missing prime number in this sequence is 7.
Analyzing Sequence 2:
6 to 12: Multiply by 2
12 to 24: Multiply by 2
24 to 48: Multiply by 2
This sequence is multiplying by 2 each time.
Thus, the correct answer is (b) 7