An electronics company produces three types of parts for automatic washing machines .It
purchases castings of the parts from a local foundry and then finishes the part on drilling,
shaping and polishing machines. The selling prices of parts A, B, and C respectively are
Rs 8, Rs.10 and Rs.14.All parts made can be sold. Castings for parts A, B and C
respectively cost Rs.5, Rs.6 and Rs.10.
The shop possesses only one of each type of machine. Cost per hour to run each of the
three machines are Rs.20 for drilling, Rs.30 for shaping and Rs.30 for polishing. The
capacities (parts per hour) for each part on each machine are shown in the following
table.