标题: 求问一道prep数学题 [打印本页] 作者: 没有人 时间: 2010-3-5 11:10 标题: 求问一道prep数学题 According to the direction on a can of frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12-ounce cans of the concentrate are required to prepare 200 6-ounce servings of the orange juice 答案是25,请问这道题什么意思?