The ratio of the number of cars to the number of motorcycles in a parking lot is 10 : 3. The ratio of the number of motorcycles to the number of vans is 2 : 5. There are 30 vans in a parking lot. How many more cars than vans are there?

Respuesta :

5 because the car to motorcycle is 20:6. Motorcycle to van is 6:15 20-15 is 5 ~JZ