音乐会小学四年级奥数测试题
一场音乐会的票价有40元、60元两种。60元的.有100个座位，40元的有250个座位。票房收入是15000元，观众可能有多少人?(已知两种票售出的都是整十数。)
答案与解析：可先假设60元的100个座位全卖完则40元的要卖(15000-100×60)元。即9000元。
9000÷40=225商不是整10。
2.60元的100个座位卖出90个，则40元的要卖(15000-90×60)元。即9600元。
9600÷40=240商是整10
所以：60元的卖出90张，40元的卖出240张。
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