4 machines can complete a job in 6 hours how long will it take 3 machines to complete the same jobs?
Set up a proportion of machines to hours where h is the number of hours that 3 machines take:
4/6 = 3/h
Type this proportion into our search engine and we get:
h = 4.5
Set up a proportion of machines to hours where h is the number of hours that 3 machines take:
4/6 = 3/h
Type this proportion into our search engine and we get:
h = 4.5