Question

Question 2.
There are 30 boys and 20 girls in a class. The ratio of the number of girls to the number of boys is​

Answer 1

Answer:

the ratio is (number of girls)/(number of boys)

20/30

=(2/3)

Answer 2

The ratio of the number of $\sf gi rls$ to the number of boys is 2 : 3

Given :

There are 30 boys and 20 $\sf gi rls$ in a class

To find :

The ratio of the number of $\sf gi rls$ to the number of boys

Solution :

Step 1 of 2 :

Write down the number of $\sf gi rls$ and number of boys

It is given that there are 30 boys and 20 $\sf gi rls$ in a class

The number of $\sf gi rls$ in the class = 20

The number of boys in the class = 30

Step 2 of 2 :

Find the ratio

We have to find the ratio of the number of $\sf gi rls$ to the number of boys

Hence the required ratio

= 20 : 30

$\displaystyle \sf{ = \frac{20}{30} }$

$\displaystyle \sf{ = \frac{2 \times 10}{3 \times 10} }$

$\displaystyle \sf{ = \frac{2 }{3 } }$

$\sf = 2 : 3$

The ratio of the number of $\sf gi rls$ to the number of boys is 2 : 3