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| Maths
| Percentage
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Date Posted: 6 years ago
Views: 606
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
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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