| 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 class? |
Answer:
We have, Number of girls = 20 Number of boys = 15 Total number of students in a class = 20 + 15 = 35 (a) Ratio of number of girls to the number of boys \[=20:15\] \[=\frac{20}{15}=\frac{4}{3}=4:3\] (b) Ratio of number of girls to total number of students \[=20:35\] \[=\frac{20}{35}=\frac{4}{7}=4:7\]
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