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y=wanita
56=(60x+49y) /(x+y)
56(x+y)=60x+49y
56x+56y=60x+49y
56y-49y=60x-56x
7y=4x
y/x=4/7
y : x= 4 : 7
ingat =
x adl laki-laki
y=wanita
jadi perbandingan banyak murid wanita dan laki-laki = 4 : 7
60 56 49
4 : 7
perbandingannya pria : wanita=7:4