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secondary 3 | E Maths
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secondary 3 chevron_right E Maths chevron_right Singapore

I need help to start with the qn

Date Posted: 1 year ago
Views: 48
Eric Nicholas K
Eric Nicholas K
1 year ago
n spheres of 20 g each and box of mass 150 g

Total mass = (20n + 150) g

Total mass is more than 290 g

(We transform the phrases into a mathematical equation)

20n + 150 > 290
20n > 140
(Divide both sides by 20)
n > 7
Least n is 8
Eric Nicholas K
Eric Nicholas K
1 year ago
Sorry missed out the box the first time

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Tong Woei Horng
Tong Woei Horng's answer
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