Give the step-by-step reasoning process and then the final answer. Peter has to walk 2.5 miles to get to the grocery store. If it takes him 20 minutes to walk one mile and he has walked 1 mile already, how many more minutes does he have to walk to reach it?
User
Peter has to walk a remaining 2.5 total miles - 1 mile completed = 1.5 miles remaining. It will take him another 20 minutes * 1.5 miles remaining = 30 minutes to get to the grocery store.
The final answer: 30.
Assistant