Find the missing number?

A. 35

B. 39

C. 30

D. 43

Answer: Option B

Solution(By Examveda Team)

Left to Right:
3
3 *2 - 1 = 5
5 *2 - 2 = 8
8 *2 - 3 = 13
13 * 2 - 4 = 22
Missing number,
22 * 2 - 5 = 39.