Q. 9, 11, 33, 13, 15, 33, 17, ... choose which pair of numbers comes next?
✅ Correct Answer: (A)
19, 33
Explanation: In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.
Explanation by: Gopal Sharma
In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.