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A retailer planned to buy some computers from a total of sh 1,800,000. Before the retailer could buy the computers the price per unit was reduced by sh.4,000. This reduction in price enabled the retailer to buy five more computers using the same amount of money as originally planned. (a) Determine the number of computers the retailer bought.
(b) Two of the computers purchased got damaged while in store, the rest were sold and the retailer made a 15% profit. Calculate the profit made by the retailer on each computer sold.