Question

if there are 520 students in a class and ratio of boys and girls are 7:6 find the difference of boys and girls​

Answer 1

Answer:

1

Secondary School Math 5 points

The ratio of boys to girls in a class is 4:5. What fraction of the class are boys? what fraction of the class are girls?

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Answers

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Answer:

\frac{4}{9} Fraction of class are boys and \frac{5}{9} Fraction of class are girls

Step-by-step explanation:

We are given that the ratio of boys and girls is 4:5

Let the ratio be x

No. of boys = 4x

No. of girls = 5x

Total students = 4x+5x=9x

Fraction of class are boys = \frac{\text{No. of boys}}{\text{Total students}}

= \frac{4x}{9x}

= \frac{4}{9}

So, \frac{4}{9} Fraction of class are boys

Fraction of class are girls = \frac{\text{No. of girls}}{\text{Total students}}

= \frac{54x}{9x}

= \frac{5}{9}

So, \frac{5}{9} Fraction of class are girls

Hence \frac{4}{9} Fraction of class are boys and \frac{5}{9} Fraction of class are girls........