Question

It takes a total of 3 hours to wash every window on a building. There are 30 windows. How many minutes does it take to wash just one window?

Answer 1

Time taken to wash all the window of the building =( 3 hrs) 180 minutes

No. of windows = 30

Time taken to wash 1 window = 180/30

= 6 minutes

Therefore time to wash 1 window is 6 minutes