Jonathan's class has 30 boys. Of the students in his class, 60% are girls. How many girls are in Jonathan's class
1 answer:
If 60% are girls, the ratio girls to boys is
... girls : boys = 60% : 40% = 3 : 2
This means the number of girls is 3/2 times the number of boys:
... (3/2)*30 = 45
There are 45 girls in Jonathan's class.
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