Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
There are 50 children at the party. Three-fifths of them are boys. How many of the children are girls?

### Response:
50x3/5=30 children are boys.
So there are 50-30=<<50-30=20>>20 children that are girls.
#### 20