Four processes are involved in making 8,000 units of product X every month. One of the processes has been determined to

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Four processes are involved in making 8,000 units of product X
every month. One of the processes has been determined to be the
bottleneck. In the bottleneck process, two machines are available
for eight hours a day and five days a week. Direct material cost
for five units is ￡7.50 and the direct labour cost per unit is ￡5.
Selling price per unit is ￡14. What is the throughout contribution
for one unit of product X?