1. A beauty salon has 4 staff members, working shifts of 8 hours per day, in a 5-day week or 21 days per month. Combined, they service 800 customers on average per month. The labour productivity would be:

2. A manager at a fast food outlet is concerned about the efficiency of his operations. He has 5 staff members serving customers and on average, it takes 30 minutes to service a customer. The cycle time of preparing the food is 10 minutes. Calculate the efficiency of the operation.

3. A lawnmower manufacturer struggles to have the correct amount of parts available at all times. A typical container of parts spends 0.3 of a day in processing and 0.7 of a day in materials handling and waiting. The daily demand for the parts is 2 000 units. Management has decided to hold a 10% safety stock level. Using the Kanban system, determine the appropriate number of containers to balance demand with supply if each container contains 22 parts

4. A citrus farmer forecasts that he will sell 15 000 boxes of oranges during a season, at R150 per box. The fixed costs are R400 000 and the variable cost per box is R100. Determine the contribution of the oranges as a product line towards the profits of the farm.

5. When orders are processed mistakes can happen, which might have a major impact on the productivity of the business. In a buying department of a hardware store, mistakes have to be traced due an increased amounts of stock-outs. Calculate the ratio of errors per order if there were 15 orders on average and 4 errors.