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What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?

What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?
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What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?

User Docsteer
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1 Answer

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You've got 19 numbers. Their sum is 10(1+2+3+...+19) or
10*(20*19)/(2). Divide that by 19, to get
(10*20)/(2)=100
User Ryan Burke
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