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siswa seluruhnya=40 siswa
dit : banyaknya siswa putra & putri=...?
jwb: siswa putra : 5/14×40=14:2=7
: 40:2=20
: 5/7×20 = 20:5=4
=4×7=35
siswa putri : 9/14×40 = 14:2=7
= 40:2=20
: 9/7×20 = 20×9=180
= 180:9=5