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primary 5 | Maths
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Mary Song
Mary Song

primary 5 chevron_right Maths

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Date Posted: 6 years ago
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GUO XIAOFEI
Guo Xiaofei's answer
7 answers (Tutor Details)
1st
Ratio method will be easier for this kind of question. The important part is to find the new ratio by realising that X+Y occurs in both ratio stated, therefore the units should be the same. After finding the new ratio, we can compare the units, before and after.