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The mean of the first n consecutive positive base-7 numbers is 6. What is the base-10 value of n?
6 years ago

Answers

oobleck
since the numbers are 1-n, their sum is n(n+1)/2, making the mean (n+1)/2
So, n=11

Not sure what the base 7 has to do with anything. The mean is the same value in any base.
6 years ago

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