(1)There are 80 more Brand X computers than Brand Y computers at the company.
(2)There is total of 880 computers at the company.
Ans:D
我選A, 因為題目一開頭就說some computers中有Brand X和Brand Y, 覺得好像指的是某些電腦有Brand X and Brand Y, some computers讓人覺得好像還有其他的電腦, 所以在看到B選項說total of 880 computers就把答案刪去了
請大大指點迷津
