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Danny is 28 years younger than Trudy. Rose is 36. Ariana is 25 years younger than Rose and 57 years younger than Trudy. How old is Danny?

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解答

Dannyis28yearsyoungerthanTrudy.Roseis36.Arianais25yearsyoungerthanRoseand57yearsyoungerthanTrudy.HowoldisDanny?

解答

Danny′sageis:40
求解步骤
Translate the problem into an equation:x+28=36−25+57
求解 x,x+28=36−25+57:x=40
Danny′sageis:40

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