There are 20 girls and 15 boys in a class. What is the ratio of number of girls to the total number of students in the class?

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Solution

Given, Number of girls $= 20$
Total number of students $= 20 + 15$

Then $\frac{N o . o f g i r l s}{T o t a l s t u d e n t s} = \frac{20}{20 + 15} = \frac{20}{35} = \frac{4}{7}$ .

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There are 20 girls and 15 boys in a class. What is the ratio of number of girls to the total number of students in the class?

Given, Number of girls =20Total number of students =20+15Then No.ofgirlsTotalstudents=2020+15=2035=47.

Given, Number of girls $= 20$
Total number of students $= 20 + 15$

Then $\frac{N o . o f g i r l s}{T o t a l s t u d e n t s} = \frac{20}{20 + 15} = \frac{20}{35} = \frac{4}{7}$ .