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Mathematics, 28.01.2020 00:31 fendyli2353

Afather who is 42 years old has a son and a daughter. the daughter is three times as old as the son. in 10 years, the sum of all their ages will be 100 years. how old are the two siblings at present?

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Afather who is 42 years old has a son and a daughter. the daughter is three times as old as the son....

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