Re: [問題] 數學求解
看板GMAT (GMAT入學考試)作者zacchen (sunny side up)時間17年前 (2008/01/10 12:15)推噓0(0推 0噓 0→)留言0則, 0人參與討論串2/2 (看更多)
※ 引述《dddaaa ()》之銘言：
: A certain business produced x rakes each month form November through February
: and shipped x/2 rakes at the beginning of each month from March through
: October. The business paid no storage costs for the rakes from November
: through February, but it paid storage costs of $0.10 per rake each month from
: March through October for the rakes that had not been shipped. In terms of x,
: what was the total storage cost, in dollars, that the business paid for the
: rakes for the 12 months form November through October?
: A. 0.40x
: B. 1.20x
: C. 1.40x
: D. 1.60x
: E. 3.20x
: 答案是C
: 請高手解答 感謝
這一間公司一個月製造X個rake
從11月到2月一共製造了4*x=4x個rake
從三月開始賣,但不繼續製造
一個月賣x/2個
所以三月的庫存就是4x-(x/2)=3.5x
四月的庫存是3.5x-(x/2)=3x
五月的庫存是3x-(x-2)=2.5x
依此類推
十月的庫存就是0.5x
把三月到十月的庫存量加起來再乘上0.1
就是儲存費用
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