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luisz
 3 years ago
What is the average(arithmetic mean) of the positive
integers from 1 to 50, inclusive? Note: please tell
the shortcut for this PSAT question.
luisz
 3 years ago
What is the average(arithmetic mean) of the positive integers from 1 to 50, inclusive? Note: please tell the shortcut for this PSAT question.

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punnus
 3 years ago
Best ResponseYou've already chosen the best response.1sum of n terms (first+last)*n/2 average of n terms is (first+last)/2

punnus
 3 years ago
Best ResponseYou've already chosen the best response.1yes The sum of first 50 terms inclusive is an Arithmetic progression
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