Direction: Answer the questions based on the following table.
Machine M1 as well as machine M2 can independently produce either product P or product Q. The time taken by machines M1 and M2 (in minutes) to produce one unit of product P and product Q are given in the table below: (Each machine works 8 hour per day).
If equal quantities of both are to be produced, then out of the four choices given below, the least efficient way would be