Multiple choice

Which of the following numbers is wrong in the series? 3, 6, 10, 16, 21, 28

  1. 16

  2. 10

  3. 15

  4. 28
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A Correct answer
Explanation

The correct series should be 3, 6, 10, 15, 21, 28 where the differences increase by 1 each time (3, 4, 5, 6, 7). In the given series, 16 breaks this pattern and should be 15 instead. The sequence follows the pattern where each successive difference increases by 1.

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