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secondary 4 | E Maths
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secondary 4 chevron_right E Maths

part a

Date Posted: 7 years ago
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zhu jiasheng
Zhu Jiasheng's answer
25 answers (Tutor Details)
1st
If you can tell that the container will hold 4 triangle prism, then you can immediately tell it takes only 12/4=3min to fill up to d=20.