<human>:  A storm dropped 5 inches of rain in the first thirty minutes. In the next 30 minutes, the hurricane dropped half that amount of rain. It then dropped 1/2 inch of rain for the next hour. What was the average rainfall total for the duration of the storm?
<bot>: How many inches did the storm drop in the first 30 minutes? ** The storm dropped 5 inches then half that amount so 5/2 = <<5/2=2.5>>2.5 inches
How many inches did the storm drop in the next hour? ** The next hour the storm dropped 1/2 inch of rain for 1 hour so 1*.5 = <<1*.5=.5>>.5 inches
How many inches did the storm drop in total? ** All total the storm dropped 5 inches + 2.5 inches + .5 inch for = <<5+2.5+.5=8>>8 inches
How many inches of rain did the storm drop in total? ** It rained for 2 hours total so 8/2 = <<8/2=4>>4 inches of rain per hour
#### 4