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primary 6 | Maths | Fractions
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jayden
Jayden

primary 6 chevron_right Maths chevron_right Fractions chevron_right Singapore

hi i need help ty

Date Posted: 1 year ago
Views: 138

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Jia Earn Lim
Jia Earn Lim's answer
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Hope my explanation and thought process here helps :)
jayden
Jayden
1 year ago
thank u,but i dont get why 28-24,it says girls that left and not boys
Jia Earn Lim
Jia Earn Lim
1 year ago
Because out of the 28 children that left, knowing that 24 were girls is not sufficient to find how many girls were there in the first place. So we need to find numbers of boys that left too as these number of boys who left make up 1/4 of all boys at first. When we have all boys at first, we can find all girls at first :)