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3 years ago

14

What is the average of the integers from 25 to 41?

1 answer:

Archy [21]3 years ago

7 0

The average<span> of the terms of a contiguous subsequence of any arithmetic progression is the </span>average<span> of the first and last terms. To see this, notice that if you remove </span>25<span> and </span>41<span> from your sequence, then the </span>average<span> of the remaining terms is still given by the </span>average<span> of the extreme terms 26+402=33 .</span>

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