Question

Two mechanics worked on a car. The first mechanic worked for 5

hours, and the second mechanic worked for 15hours. Together they charged a total of $1325. What was the rate charged per hour by each mechanic if the sum of the two rates was $165 per hour? First mechanic per hour second mechanic per hour

Answer 1

$50 and $115

Explanation:

We know that,

the sum of the two rates = $165 per hour

Let x and (165 - x) represent the $/hour of the 15hr and 5hr mechanics respectively.

Then combining their charges together to get:

`(x*15)hour+(165-x)*5 hour=1325`

Solving for x to get:

`15x-5x+825=1325`

`10x=500`

`x=50`

So the rate charged per hour by one mechanic is $50 and for the other mechanic =
`(165-50)=` $115.