human
At its current growth rate, a certain plant will be 80 feet tall after a year. If the plant grows at the same rate every month and is currently 20 feet tall, what's its monthly growth rate in feet?
assistant
How many feet will the plant have grown after a year? ** If the plant is currently 20 feet tall, it will have grown by 80-20=<<80-20=60>>60 feet after a year.
How many feet does the tree grow every month? ** Since a year has 12 months, and the tree grows at the same rate every month, the tree grows at 60/12=<<60/12=5>>5 feet every month.
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