Aparking lot has a total of 60 cars and trucks. the rate of cars to trucks is7: 3. how many cars are in the parking lot? how many trucks are in the parking lot?

42 vehicles are cars, 18 vehicles are trucks

7/10 are trucks
10×6= 60 total cars
7×6=42

42 out of 60 total vehicles are trucks

I’m not absolutely sure but i think it’s 7x6x5x4x3x2=5040 because as the first character you can take any of the 7 given then you are left with 5 then 6 then 4 etc.