Q1. 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 number of girls to the total number of students in the class?
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Answer:(a) The ratio of number of girls to the number of boys is 4:3
(b) The ratio of the number of girls to the total number number of students in the class = 4:7
Step-by-step explanation:
(i)The ratio of girls to boys is = 20 / 15 = 4/3 = 4:3
(ii)The ratio of girls to the total no . of students is =
The total no .of students = 20 + 15 = 35
= No of girls = 20
= 20 / 35 = 4/7 = 4:7
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