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Mathematics, 08.06.2021 22:10 emanuel323

if the mean of a &n B is 20. the mean of B&C is 24 and the mean of AB&C is 18. what is the mean of A&C?

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if the mean of a &n B is 20. the mean of B&C is 24 and the mean of AB&C is 18. what is t...

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