40, 40, 31, 31, 22, 22, 13, ... choose which pair of numbers comes next?

A. 13, 4

B. 13, 5

C. 4, 13

D. 9, 4

E. 4, 4

Answer: Option A

Solution(By Examveda Team)

This is a subtraction series with repetition. Each number repeats itself and then decreases by 9.