<human>:  John buys 5 notebooks that have 40 pages each. He uses 4 pages per day. How many days do the notebooks last?
<bot>: How many pages are in the notebooks? ** He got 5*40=<<5*40=200>>200 pages
How many days do the notebooks last? ** So they will last 200/4=<<200/4=50>>50 days
#### 50