In a retail store, the average(arithmetic mean) sale for month M was d dollars. Was the average(arithmetic mean)sale for month H at least 20 percent higher than that for month M? (1)For month M, total revenue from sales was $3,500 (2)For month J, total revenue from sales was $6,000
In a certain store, item X sells for 10 percent less than item Y. What is the ratio of the store's revenue from the sales of item X to that from the sales of item Y? (1) The store sells 20 percent more units of item Y than of item X (2) the store's revenue from the sales of item X is $6,000 and from the sales of item Y is $8,000作者: joywzy 时间: 2003-5-26 17:21
你放错地方了,这是逻辑区.呵呵.作者: hurrah 时间: 2003-5-26 21:30
帮忙删了吧