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

### Instruction:
John buys 5 notebooks that have 40 pages each.  He uses 4 pages per day.  How many days do the notebooks last?

### Response:
He got 5*40=<<5*40=200>>200 pages
So they will last 200/4=<<200/4=50>>50 days
#### 50