If five machines working at the same rate can do 3/4 of a job in 30 mi

If five machines working at the same rate can do \(\frac34\) of a job in 30 minutes, how many minutes would it take two machines working at the same rate to do \(\frac35\) of the job? (A) 45 (B) 60 (C) 75 (D) 80 (E) 100