Carolyn is training for a race. She runs 4 1/2 miles on Monday Wednesday and Friday. She runs 2 3/4 on Tuesday and Saturdays. If she does this for 4 weeks, how many miles does she run?

Question

Carolyn is training for a race. She runs 4 1/2 miles on Monday Wednesday and Friday. She runs 2 3/4 on Tuesday and Saturdays. If she does this for 4 weeks, how many miles does she run?

Answer 1

We need to first determine the number of miles she runs in one week, then multiply it by four to get the number of miles she runs in 4 weeks.

First off, it is easier to work with decimals than fractions in these computations.

1/2 is equal to .5 so 4 1/2 is equal to 4.5

3/4 is equal to .75 so 2 3/4 is equal to 2.75

Let's total up the miles she runs each week:

3 days a week she runs 4.5 miles - so that contribution is 3 * 4.5 = 13.5 miles

2 days a week she runs 2.75 miles - so that contribution is 2 * 2.75 = 5.5 miles

Total for one week is 13.5 + 5.5 = 19 miles

Total for four weeks is 19 * 4 = 76 miles