13, 29, 15, 26, 17, 23, 19, ... choose which pair of numbers comes next?

Sonali Mishra • 4.53K Points
Extraordinary Reasoning

Q. 13, 29, 15, 26, 17, 23, 19, ... choose which pair of numbers comes next?

(A) 21, 23
(B) 20, 21
(C) 20, 17
(D) 20, 17 D. 25, 27

Correct Answer - Option(B)

Explanation by: Sonali Mishra

Here, there are two alternating patterns, with every other number following a different pattern. The first pattern begins with 13 and adds 2 to each number to arrive at the next; the alternating pattern begins with 29 and subtracts 3 each time.

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