Question

A construction crew has just finished building a road. The crew worked for 2 7/9 days. If they built 2 1/5 kilometers of road each day, what is the total length of road they built? Write your answer as a mixed number in simplest form.

Answer 1

let 'x' represent the number of kilometers built per day

(5 2/5)x = 12

((5*5 + 2)/5)x = 12

by solving we find

x = 2.22 km hope this is right