Mathematics, 23.02.2020 22:30, frisha

Sara has a son and a daughter – Billy and Jane. Billy is five times as old as Jane. Their mother is now three times as old as Billy, and in 2 years she will be eight times as old as Jane. Find the present age of the mother.

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Sara has a son and a daughter – Billy and Jane. Billy is five times as old as Jane. Their mother is...