Multiple choice general knowledge math & puzzles

Identify the missing number in the series…13, 26, 39, ? , 65…

  1. 52

  2. 42

  3. 45

  4. 48
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A Correct answer
Explanation

This is an arithmetic progression with a common difference of 13. Each term increases by 13: 13+13=26, 26+13=39, 39+13=52, 52+13=65. The missing number is 52.

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