Question

Two mechanics worked on a car. The first mechanic charged 105

per hour, and the second mechanic charged 75
per hour. The mechanics worked for a combined total of 25
hours, and together they charged a total of 2175
. How long did each mechanic work?

Answer 1

the 105 per hour mechanic worked for 10 hours and the other worked for 15. 

Answer 2

the 105 per hour mechanic worked for 10 hours and the other worked for 15. here's the math.