Imperial Education Services is offering a workshop in data p

Imperial Education Services is offering a workshop in data processing to key personnel at Zeta Corporation. The price per person is $50, and Zeta Corporation guarantees that at least 50 people will attend. Suppose I.E.S. offers to reduce the charge for everybody by $0.50 for each person over the 50 who attends. How should I.E.S. limit the size of the group so that the group so that the total revenue it receives will never be less than that received for 50 persons

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