SOLUTION: in a class of 40 students 70% of them are boys what will be a percentage of girls in the same class after 8 boys leave the school

Question 882649: in a class of 40 students 70% of them are boys what will be a percentage of girls in the same class after 8 boys leave the school
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
in a class of 40 students 70% of them are boys what will be a percentage of girls in the same class after 8 boys leave the school
number of boys in class:
.70 * 40 = 28
number of girls in class:
40-28 = 12
total in class then: 20+12 = 32
percentage of girls in class:
12/32 * 100 = 37.5%
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