If you buy one ticket what amount will you earn on average

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Raffle de St. Michelle: A local charity holds a raffle every year. They have one first prize of $500, four second prizes of $100 each and ten third prizes of $50 each. This year they sold 300 tickets.
(a) If you buy one ticket, what amount will you earn on average?
(b) If you buy five tickets, what amount will you earn on average?

Reference no: EM13274233

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