弱问一个数学描述和一道DS题

teddyabc

从数学上说， at least 应该不等于 greater than吧？

为何下面这个题选C呢， 我怎么看怎么觉得选E。。。 求指点
During July, a mail order retailer received 3300 order for amounts less than $100, and 1100 orders for amounts of at least $100. what was the average size of an order in July?
(1) The gross sales from the orders less than $100 equaled the gross sales from the orders greater than $100
(2) The orders for less than $100 account for a total of $134000 in gross sales

teddyabc

THX， 所以说题目混淆了at least和greater than。

确认一下踏实多了。22号考试，参观别人家的小狗狗中，顺便祝所有2月G友好运