Jawapan

2016-03-10T18:05:42+08:00
2016-03-10T18:35:44+08:00
Kos = 60 sen
untung = 30 sen

jualan
= kos + untung
= 60 + 30
= 90 sen

hasil jualan
= 90 sen x 50
= 4500 sen
= RM45
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