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Question
primary 5 | Maths
| Rate & Ratio
One Answer Below
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Date Posted: 3 years ago
Views: 656
【item (Henry) unchanged】
at first (b4)
E:H=2:5 = 12:30
in the end (aft)
E:H=5:6 = 25:30
change of E
25-12 = 13 units → 26
13 : 30 = 26 : 60
30×26÷13 = 60 (Ans)
at first (b4)
E:H=2:5 = 12:30
in the end (aft)
E:H=5:6 = 25:30
change of E
25-12 = 13 units → 26
13 : 30 = 26 : 60
30×26÷13 = 60 (Ans)
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Date Posted:
3 years ago
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