Problema Solution
Kopy Kwik has 2 copiers. One can copy a year-end report in 20 minutes. The other can copy the same document in 30 minutes. How long would it take both machines working together to copy the report?
Answer provided by our tutors
Set up the equation where x = time in minutes it takes for both copiers to work together
x/20 +x/30 = 1
Solve for x
x = 12 minutes