human
There are 100 students in class and the ratio of boys to girls is 3:2. How many more boys than girls are there?
assistant
How many parts are there? ** The class was divided into 3 + 2 = <<3+2=5>>5 parts.
How many students are in each part? ** So each part is equal to 100/5 = <<100/5=20>>20 students.
How many boys are there? ** Since there are 3 parts for boys, then there are 20 x 3 = <<3*20=60>>60 boys in class.
How many girls are there? ** So there are 100 - 60 = <<100-60=40>>40 girls in class.
How many more boys than girls are there? ** Hence, there are 60 - 40 = <<60-40=20>>20 boys more than girls.
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