问题描述：
A ENGLISH maths question.
sam buys 500 TV game sets at a total cost of $110 000.If each game set is sold at a discount of 20%,he will make a profit of 20%.Find
a) his total profit,
b)the selling price of each game set,
c)the marked price of each game set.
sam buys 500 TV game sets at a total cost of $110 000.If each game set is sold at a discount of 20%,he will make a profit of 20%.Find
a) his total profit,
b)the selling price of each game set,
c)the marked price of each game set.
问题解答：
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