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

### Instruction:
Martin owns a farm with hens. 10 hens do lay 80 eggs in 10 days. Martin decided to buy 15 more hens. How many eggs will all hens lay in 15 days?

### Response:
Original 10 hens lay 80 eggs in 10 days.
80/10=<<80/10=8>>8 eggs per hen per day
15 new hens lay 15x8=<<15*8=120>>120 eggs in 15 days.
Total eggs laid = 80+120 = <<80+120=200>>200 eggs in 15 days.
#### 200

