1 1/2 miles is the same as walking 1/2 a mile 3 times, so we can divide 22.5 minutes by 3 to find how long it takes to walk half a mile 22.5/3=7.5 We can then multiply 7.5 by 2 to get how long it takes to walk 1 mile 7.5 x 2 = 15 minutes It takes Avante 15 minutes to walk 1 mile