Question

Two mechanics worked on a car. The first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1875 . What was the rate charged per hour by each mechanic if the sum of the two rates was $205 per hour?

Answer 1

use the rule of ratio
so between both mechanic they had
5hr:15hr
further simplifed to 1:3
this means the mechanic who worked for 5 hours get 1/4 share of $1875 charged
and the mechanic who worked for 15hrs get 3/4 of $1875 charged

Answer 2

if you use this

Answer 3

and