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

### Instruction:
At the gym, every day, there are 300 towels laid out for guest use.  Each guest is given 1 towel during their visit.  The gym is open from 10:00 a.m. to 2:00 p.m. In the first hour, 50 guests enter the gym.  In the second hour, 20% more guests enter than during the first hour.  In the third hour, 25% more guests enter than in the second hour.  In the fourth hour, one third more guests enter than in the third hour.  In total, how many towels do they need to wash that evening?

### Response:
First hour: 50 guests
Second hour: 50 + (50 * 0.20) = 50 + 10 = 60 guests
Third hour: 60 + (60 * 0.25) = 60 + 15 = 75 guests
Fourth hour: 75 + (75 * 0.33) = 75 + 25 = 100 guests
Total guests: 50 + 60 + 75 + 100 = 285 guests
The gym needs to wash 285 towels.
#### 285

