Question

A car dealership sold 78 new cars and 67 used cars this year. The number of new cars sold by the dealership has be increasing by 6 cars each year. The number of used cars sold by the dealership has been decreasing by 4 cars each year. If these trends continue, in how many years will the number of new cars sold be twice the number of used cars sold?

Answer 1

the sales will Have doubled by the 4th year