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Primary 4 | Maths
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Wu Shan He
Wu Shan He

Primary 4 chevron_right Maths chevron_right Singapore

Nil

Date Posted: 4 months ago
Views: 38
snell
Snell
4 months ago
c: u
a: 4u

4u - 143 = u - 17
u = 42

at first, 42 children

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Teo Woon Kiat
Teo Woon Kiat's answer
153 answers (Tutor Details)
1st
I hope the diagram helps.
Wu Shan He
Wu Shan He
4 months ago
Thanks a lot.