Jawapan

2016-06-19T21:04:33+08:00
RM 3 DARAB 4
=RM 12

100-60
=40

40 PER 100 DARAB RM 12
= RM 4.8

TOTAL = RM 4.8
2016-06-21T06:14:52+08:00
RM 3 × 4 - RM 12 60 per 100 × RM 12 - RM 7.20 RM 12 - RM 7.20 - RM 4. 80 ( Ni cara yang lain, tapi sama sahaja jawapan )