Problema Solution
The Office Jet printer can copy Sue's dissertation in 16 minutes. The LaserJet printer can copy the same document in 8 min.., If the two machines were together how long would they take a copy the dissertation?
Simplify your answer into min.
Answer provided by our tutors
If A can do a job in x time periods, then A can do of the job in 1 time period. Likewise, if B can do the same job in y time periods, then B can do of the job in 1 time period.
So, working together, they can do
Therefore, they can do the whole job in: