Human: The water pressure of a sink has a steady flow of 2 cups per 10 minutes for the first 30 minutes. It still flows at 2 cups per 10 minutes for the next 30 minutes after. For the next hour, the water pressure maximizes to 4 cups per 10 minutes and stops. Shawn now has to dump half of the water away. How much water is left? Assistant:
For the first 30 minutes, 3*2=6 cups of water came out.
For the next 30 minutes, 3*2=6 cups of water came out.
For the next hour, 6*4=24 cups of water came out.
A total of 6+6+24=36 cups of water came out.
Shawn had to dump water which left 36/2=18 cups of water.