Question

In a class of 60 children,30% are girls . How many boys are there ?
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Answer 1

Boys % = (100-30)% = 70 %

Boys= 70/100 *60 = 42

Answer 2

Answer:

42

Step-by-step explanation:

Let the no. of boys be x

30%of girls =30/100×60

=18

Total no. of students=no.of girls+no.of boys

60=18+x

x=60-18

=42 ans