Question

Imagine you live only one mile from work and you decide to walk if you walk four miles per hour, how long will it take you to walk one mile? That is the question

Answer 1

4 / 1 = 1 / x....4 miles to 1 hr = 1 miles = x hrs
cross multiply
4x = 1
x = 1/4.....it would take 1/4 of an hr (or 15 minutes) to walk 1 mile