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primary 5 | Maths
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Wei Jun
Wei Jun

primary 5 chevron_right Maths

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Date Posted: 6 years ago
Views: 334
JO
JO
6 years ago
I cannot upload my answer. Hope below explanation helps.

1) Diff bwt New & Old Avg = 165 - 162 = 3cm

2) Addnl Height = 180 - 162 = 18cm

3) Addnl Height / Diff Avg = 18/3 = 6 Persons

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