论文部分内容阅读
商品利润问题是数学应用中比较常见的一类问题 ,所涉及的量有成本价、销售价、利润、销量、销售额及打几折等。这类题目很多 ,对于常见的题目 ,这里不再重复 ,只给出几个实用、有趣、又易掌握的例子。例 1 某商场对电子琴在原价基础上打七折出售 ,商场要想与原来的销售额一样?
The problem of commodity profit is a relatively common type of problem in mathematics applications. The quantities involved include cost price, sales price, profit, sales volume, sales volume and a few discounts. There are many such topics. For common topics, they are not repeated here. Only a few practical, interesting and easy-to-master examples are given. Example 1 A mall sells 30% off the electronic keyboard based on the original price. Should the mall be the same as the original sales?