1、大概是:一个公司卖some chairs和coats,大概是,卖的价格是18.1和某个数,不记得了,然后说,the profit is 40% of the cost for per chair, and 30% of the cost for coat. The total cost is 420$, 问total porfit
这道题两个LZ都没做出来,NN们看看。。。
80. 某人有100pages, 然后用红色的s..(单词我忘记了,反正就是夹页之类的)当作first page,后面就要有6pages纸,用blue的8 pages behide blue s..,how many pages remained.