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The ticket to a film showing costs Php 20, At this price, the organizer found out that all the 300 seats are filled. The organizer estimates that if the

prize is increased, the number of viewers will fall by 50 for every Php 5 increase.
a) What ticket price results in the greatest revenue ?
b) At this price, what is the maximum revenue ?


b450                                                           ......................................
2 1 2
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