Mathematics, 13.07.2019 06:30 HockeyBlockpk7039

Acertain list consists of 21 different numbers. if n is in the list and n is 4 times the average (arithmetic mean) of the other 20 numbers in the list, then n is what fraction of the sum of the 21 numbers in the list?

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Acertain list consists of 21 different numbers. if n is in the list and n is 4 times the average (ar...

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