Respuesta :
For washing, he takes = 1/3h = 60/3 = 20 min.
For drying = 10 min.
So, for 1 car, he takes = 20 + 10 = 30 min.
Now, for 6 cars, he takes = 30 * 6 = 180 min = 180/60 = 3 hours
In short, Your Answer would be 3 hours
Hope this helps!
For drying = 10 min.
So, for 1 car, he takes = 20 + 10 = 30 min.
Now, for 6 cars, he takes = 30 * 6 = 180 min = 180/60 = 3 hours
In short, Your Answer would be 3 hours
Hope this helps!
