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In a school exhibition, hand-made crafts are displayed for sale. Some students are assigned the work of selling crafts. The overall profit p depends on the number of students x selling the crafts on that particular day and is given by the equation The school manager claims to have made a maximum profit. Find the number of students engaged in selling the crafts and the maximum profit made.
(a) and
(b) and
(c) and
(d) and
(e)and

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