Katlyn takes 20 minutes to walk from her house to the supermarket and back. After stepping outside her house, she takes 1 minute to tie her shoes and 2 minutes to check the route on her phone. How many trips can she take to the supermarket and back in 60 minutes?

Answer 1

The total time she spends on preparations and walking to the supermarket is 20 + 1 + 2 = <<20+1+2=23>>23 minutes.
Thus, she can make 60 / 23 = <<60/23=2.608695652173913>>2 trips to the supermarket and back. Answer: \boxed{2}.