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What is the average of all odd numbers less than 100?

Published in Mathematics 1 min read

The average of all odd numbers less than 100 is 50.

Here's how we arrive at that answer:

  • Identifying the odd numbers: We need to consider the odd numbers from 1 to 99.

  • The Arithmetic Sequence: These numbers form an arithmetic sequence: 1, 3, 5, 7, ..., 99.

  • Formula for the Average of an Arithmetic Sequence: The average of an arithmetic sequence is simply the average of the first and last terms.

  • Calculation: Therefore, the average is (1 + 99) / 2 = 100 / 2 = 50.

Therefore, the average of all odd numbers less than 100 is 50.

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