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题目某俱乐部准备承办一场足球赛,预计共卖出门票2.4万张,票价有3元、5元、8元三种,且票价3元和5元的张数的积为0.6万张.设x是门票的总收入,经预算,扣除其他各项支出后,该俱乐部的纯收入函数为y=lg2x.试问三种门票分别卖出多少张时,纯收入最多?这是山西省太原市2003届高三的一?
Title A club is preparing to host a football game. It is estimated that 24,000 tickets will be sold. The fares will be 3 yuan, 5 yuan and 8 yuan. The fare of 3 yuan and 5 yuan will be 6,000 pieces. Let x be the total revenue of the ticket. After the budget, after deduction of other expenses, the net income function of the club is y=lg2x. When the number of three tickets sold is the largest, the net income is the most? This is Taiyuan, Shanxi Province. One of the 2003 Senior High Schools in the city?