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Mathematics, 30.10.2020 15:00 monae7803

the average age of kofi, Ama and their child 4years ago was 20years and that of Ama and kofi 5 years ago was 30 years. the present age of the child is

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the average age of kofi, Ama and their child 4years ago was 20years and that of Ama and kofi 5 years...
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