The storm dropped 5 inches then half that amount so 5/2 = <<5/2=2.5>>2.5 inches

The next hour the storm dropped 1/2 inch of rain for 1 hour so 1*.5 = <<1*.5=.5>>.5 inches

All total the storm dropped 5 inches + 2.5 inches + .5 inch for = <<5+2.5+.5=8>>8 inches

It rained for 2 hours total so 8/2 = <<8/2=4>>4 inches of rain per hour

# Answer

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<|im_start|>system
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<|im_start|>user
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?
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user
4
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?
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