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Question
primary 5 | Maths
| Rate & Ratio
2 Answers Below
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Money question p5 pls help to solve
Backwards method
P5 learned ratio
Try to list out the before(at first)/ after (in the end ) table
In the end
A:B:B-A : T =1:5:4:6=1u:5u:4u : 6u
At first
A:B:A-B : T =1u+30:5u-30:60-4u : 6u
60-4u=14 → u=11.5 → 6u=69 (Ans)
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【backwards】