Determine the Number of Boys
A picnic is being planned in a school for class 7. Girls are 60% of the total number of students and are 18 in number. How many boys are there?
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Given,
Percentage of girls=60%
Number of girls=18
Percentage of boys=100-60=40%
If 60%=18
1%=18/60=3/10
Since 1%=3/10
No. of boys=3/10×40=12 boys.
Percentage of girls=60%
Number of girls=18
Percentage of boys=100-60=40%
If 60%=18
1%=18/60=3/10
Since 1%=3/10
No. of boys=3/10×40=12 boys.
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