There are 20 girls and 15 boys in a class.

(a)What is the ratio of number of girls to the number of boys?

(b)What is the ratio of girls to the total number of students in the class?

Dear student

Total number of students in class=girls+boys=20+15=35 studentsa) ratio of number of girls to number of boys=2015=43b) ratio of girls to total number of students in class=2035=47
Regards

  • -2
ratio=number of girls in class:number of boys in class
(a)20:15=4:3
(b)20+15=35
therefore,20:35=4:7.
  • 3
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