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Verified answer
Murid perempuan= 28 - 12
= 16 orang
perb murid laki2 dg perempuan
= 12 : 16
= 3 : 4
Verified answer
Murid Laki - Laki = xMurid Perempuan = y
x + y = 28
x = 12
x + y = 28
12 + y = 28
y = 28 - 12
y = 16
x ÷ y
= 12 ÷ 16
= 12 ÷ 4/16 ÷ 4
= 3/4
= 3 : 4
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