In Country X each taxpayer files,either individually or jointly,one federal tax return per year.Did more than 10 million of the taxpayers who filed a federal tax return for 1984 report having individual retirement accounts?
(1)Of the 90 million federal tax returns filed for 1984 in Country X ,1/3 were joint returns filed by two taxpayers, all other returns were filed by individual taxpayers.
(2)Of the Country X taxpayers who filed federal tax returns in 1984, exactly 10.5 percent reported having individual retirement accouns.
答案(C)
(1)(2)合併算的出來嗎???
不是很懂題目的意思!!
可以麻煩高手解釋依下嗎??
感激~~~