There are 12 more cars than trucks in a parking garage. The ratio of trucks to cars is 3 : 5. How many trucks and how many cars are in the parking garage?

Guest Apr 28, 2020

#1**+2 **

We could solve this with some unknowns.

Let's say C is the # of cars, and T is the # of trucks.

We know that C = 12 + T, and T : C = 3 : 5.

As T / C = 3 / 5, we can cross multiply to get that 5T = 3C.

So, C = 12 + T, and 5T = 3C. I hope you can solve this on your own now!

In case you want to check, here's the solution.

Substitute (12 + T) into 5T = 3C

5T = 3(12 + T)

Distribute to get:

5T = 36 + 3T

Isolate the variable: 5T - 3T = 36

2T = 36

Divide by 2, and te number of trucks is 18.

The number of cars is 12 + 18, which is 30.

:)

CentsLord Apr 28, 2020