There are 50 children in a class,20 are girls. What part of the class

3/5

Nope. 30 are boys.

To find the part or proportion of girls in the class, divide the number of girls by the total number of children and multiply by 100 (to express it as a percentage).

So, in this case:
Number of girls = 20
Total number of children = 50

To find the part or proportion of girls:
Part of girls = (Number of girls / Total number of children) * 100%

Part of girls = (20 / 50) * 100%
Part of girls = 0.4 * 100%
Part of girls = 40%

Therefore, 40% of the class are girls.

There are 50 children in a class,20 are girls. What part of the class are girls?

3/5

Nope. 30 are boys.

To find the part or proportion of girls in the class, divide the number of girls by the total number of children and multiply by 100 (to express it as a percentage).