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  • A series is shown with two missing numbers. 1, 1, 2, 3, 5...
Multiple choice

A series is shown with two missing numbers. 1, 1, 2, 3, 5, a, 13, b.

What is the sum of a and b?

  1. 26

  2. 29

  3. 18

  4. 21

  5. 34

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

1 + 1 = 2. 1 + 2 = 3. 2 + 3 = 5. a = 3 + 5 = 8. 8 + 5 = 13. b = 13 + 8 = 21. Thus, a + b = 8 + 21 = 29.

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