帮忙翻译这道数学题 并且做出来 如果做不出只翻译也行啊.7
themassesofthreestudentareintheratio4:5:8,iftheircombinedmassis204kg,findthemassofthe...
the masses of three student are in the ratio 4:5:8,if their combined mass is 204kg,find the mass of the heaviest student,
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