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SSC MTS 2018 · PYQ · Average · medium

What is the average of first 15 odd numbers among the natural numbers?

  1. A.17
  2. B.15✓ Correct
  3. C.18
  4. D.16

Explanation

The first 15 odd natural numbers are 1,3,5,...,29. Their sum = 15² = 225. Average = 225/15 = 15.
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