Kat Li Heng's answer to Chua Mei Chan's Primary 5 Maths question.

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Kat Li Heng
Kat Li Heng's answer
8 answers (Tutor Details)
1st
Model method! Faith made three times as much as Su Chin. 2 units is 36 puffs and the rest is just by ratio.
Chua Mei Chan
Chua Mei Chan
6 years ago
Thank you