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Five years ago, Charlie was twice Priya's age. How old are they now if the sum of their ages 3 years ago will be 76.

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解答

Fiveyearsago,CharliewastwicePriya′sage.Howoldaretheynowifthesumoftheirages3yearsagowillbe76.

解答

Charlie′sageis:53
Priya′sageis:29
求解步骤
Translate the problem into an equation:x−3+y−3=76,x−5=2(y−5)
x−3+y−3=76,x−5=2(y−5):x=53,y=29
Charlie′sageis:53
Priya′sageis:29

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