GUO XIAOFEI's answer to Mary Song's Primary 5 Maths question.
done
1 Upvotes
clear 0 Downvotes
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.
Date Posted:
7 years ago