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

### Instruction:
One afternoon, Rachelle, Gretchen and Rocky threw pennies into the fountain and made wishes.  Rachelle threw 180 pennies into the fountain.  Gretchen threw half as many pennies into the fountain as Rachelle and Rocky threw in one-third as many pennies as Gretchen.  What was the total number of pennies thrown into the fountain by the three of them?

### Response:
Gretchen threw half as many pennies into the fountain as did Rachelle, for a total of (180/2)=90 pennies.
Rocky threw one-third as many pennies into the fountain as did Gretchen, for a total of (90/3)=<<90/3=30>>30 pennies.
Therefore, in total, the three threw (90+30+180)=<<90+30+180=300>>300 pennies into the fountain.
#### 300