Multiple choice

Directions: Choose the pair of the numbers which comes next in the given series.

13, 29, 15, 26, 17, 23, 19, ...

  1. 21, 23

  2. 20, 21

  3. 20, 17

  4. 25, 27

  5. 22, 20
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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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