To find out how long it would take Victor to wash 20 cars, we can use the fact that he can wash 2 cars in 8 minutes.
First, we can find out how long it takes him to wash one car by dividing the time by the number of cars:
8minutes/2cars
= 4 minutespercar
So Victor can wash one car in 4 minutes.
To find out how long it would take him to wash 20 cars, we can multiply the time it takes to wash one car by the number of cars:
20cars × 4minutespercar
= 80 minutes
Therefore, it would take Victor 80 minutes to wash 20 cars at the same rate of washing 2 cars in 8 minutes.