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Shirley Victorio
Shirley Victorio

P6 chevron_right Maths chevron_right Percentage chevron_right Mathematics chevron_right Singapore

I need help ASAP!

Date Posted: 5 years ago
Views: 551
J
J
5 years ago
Group 1 : boys = girls + 20

Group 2 : boys = girls - 12

So 20 - 12 = 8

Overall , there are 8 more boys than girls.

We know 45% of participants are girls.

So % of boys = 100% - 45% = 55%

55% - 45% = 10%

Since there are 8 more boys than girls overall,

10% = 8

100% = 80

Number of boys = 55%
= 55/100 x 80
= 44

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AC Lim
Ac Lim's answer
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Jo
Jo
4 years ago
Thanks!