Re: [計量] 問幾題計量
看板GRE (GRE入學考試)作者yellow928 (pinky給我pinky給我)時間16年前 (2009/10/02 12:23)推噓1(1推 0噓 1→)留言2則, 2人參與討論串2/2 (看更多)
※ 引述《Atea》之銘言：
: 1.David and Michael charged Mr. Jimenez $3,000 to remodel his basement.
: To complete the project, David worked 4 days alone, Michael worked
: 1 day alone, and they worked 10 days together. If they each received
: the same amount of money for each day that they worked, how much of
: the $3,000 did David receive?
: A)1,800
: B)1,750
: C)1,680
: D)1,575
: E)1,200
: Ans: C
: 不知道能否幫忙解答一下，謝謝。
they each received the same amount of money for each day that they worked
David 14天
Michael 11天
David recieve 3000*14/(14+11)=1680
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