Mathematics, 29.04.2021 02:40, sindy35111

If the mean of A and B is 20 , the mean of B and C and the mean of A, B and C us 18 . What is the mwan of A and C

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If the mean of A and B is 20 , the mean of B and C and the mean of A, B and C us 18 . What is the mw...