Cross country Runner A ..

Question

Cross country Runner A runs an entire trail around the school that is 2 1/2 miles long. Cross country Runner B runs 4/5 of the same course. What is the combined distance of Runner A and Runner B?

Answer 1

A = distance runner A ran  = 2.5 miles (which is equal to the course length)

B = distance runner B ran = (4/5)*A = 0.8*(2.5 miles) = 2 miles

 

T = A + B = 2.5 miles + 2 miles = 4.5 miles combined distance ran