Question

A company has a machine that can complete a job in 6 hours. With the help of a newer machine, the job can be completed in 2 hours. How long would the new machine take to do the job alone?

Answer 1

3 hours

Answer 2

3 hours

Answer 3

positive its 3?

Answer 4

absolutely

Answer 5

would u like an explanation?

Answer 6

if its quick sure

Answer 7

well the 1st machine does 1/6th of the work per hour. but u want the machine to work together to do half of the work per hour. so basicallly 1/6 +x=1/2 and x =1/3
so the new machine does 1/3 of the work per hour. thus 3 hours to finish the workby itself

Answer 8

ah, ok i get it now thanks