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4950 =72
= 68.75
x=pria
y=wanita
x+y=36
y=36-x
66x+75y=72×36
66x+75(36-x)=2592
66x+2700-75x=2592
-9x=-108
x=-108/-9
x=12
Jadi banyak siswa pria adalah 12 siswa