Lizzy: Andrew has 2 3-hour appointments today. He spends the rest of his 8-hour workday stamping permit applications. If he can stamp 50 permit applications an hour, how many permits total does he stamp today?.
Me: Hmmm, let me think. I think this is the detailed solution:
First find the total length of the appointments: 2 appointments * 3 hours / appointment = 6 hours. Then subtract that time from the length of Andrew's workday to find how many hours he spends stamping permits: 8 hours - 6 hours = 2 hours. Then multiply that number by the number of permits he can stamp per day to find how many permits he stamps: 50 permits / hour * 2 hours = 100 permits. Final answer: 100.