A company has 8 grade one and 10 grade two inspectors for quality control inspection. At least 1,800 pieces musty be inspected in an 8 hour day. Grade one inspector can check 25 pieces an hour with the accuracy of 98%. Grade two inspectors can check 15 pieces an hour with the accuracy of 95%. The wage rate of grade one inspectors is birr 4 per hour, while grade two inspector is birr 3per hour. Any error made by an inspector cost birr 2 to the company. a) Formulate this problem as LPP b) Solve the LPP

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