Jillion exercise 5 times a week. She runs 3 miles each morning and bikes in the evening. If she exercises a total of 30 miles for the week, how many miles does she bike each evening?
If she runs 3 miles each morning, that is 15 miles of running per week. So you subtract that 15 from 30, which means she bikes 15 miles per week. Now divide 15 by 5 and the answer is she bikes 3 miles per evening.