本月三明治题的原题

吉麦特小姐 · 发表于 2010-4-14 19:20:22

纹舞和XUE MM来收录一下这个月数学狗狗的三明治题的原题:

Four extra-large sandwiches of exactly the same size were ordered for m students, where m ＞ 4. Three of the sandwiches were evenly divided among the students. Since 4 students did not want any of the fourth sandwich, it was evenly divided among the remaining students. If Carol ate one piece from each of the four sandwiches, the amount of sandwich that she ate would be what fraction of a whole extra-large sandwich?

A: (m+4)/[m(m-4)]
B: (2m-4)/[m(m-4)]
C: (4m-4)/[m(m-4)]
D: (4m-8)/[m(m-4)]
E: (4m-12)/[m(m-4)]

the answer is E.

kingapple25 · 发表于 2010-4-14 19:21:39

强！

吉麦特小姐 · 发表于 2010-4-14 19:23:15

^_^ 是GWD的数学里的,正好做到了就贴过来大家SHARE一下.

Diffany · 发表于 2010-4-14 22:30:49

谢谢~

echo19872006 · 发表于 2010-4-15 01:27:20

纹舞和XUE MM来收录一下这个月数学狗狗的三明治题的原题:

Four extra-large sandwiches of exactly the same size were ordered for m students, where m ＞ 4. Three of the sandwiches were evenly divided among the students. Since 4 students did not want any of the fourth sandwich, it was evenly divided among the remaining students. If Carol ate one piece from each of the four sandwiches, the amount of sandwich that she ate would be what fraction of a whole extra-large sandwich?

A: (m+4)/[m(m-4)]
B: (2m-4)/[m(m-4)]
C: (4m-4)/[m(m-4)]
D: (4m-8)/[m(m-4)]
E: (4m-12)/[m(m-4)]

the answer is E.

-- by 会员吉麦特小姐 (2010/4/14 19:20:22)

你是怎么算的阿，我不太明白题目的意思，谢谢阿！！

忽然忘了解脱 · 发表于 2010-4-15 01:29:26

GWD不愧是真题啊。。。谢谢LZ分享

逆时桢 · 发表于 2010-4-15 10:21:42

怎么做怎么做？
lz指教一下拉

吉麦特小姐 · 发表于 2010-4-15 11:24:27

Carol 从前3快蛋糕中拿到的三明治是 3/m

从最后1快拿到的三明治是 1/(m-4)

如果问的是占1个三明治的话 = [3/m + 1/(m-4)] /1

如果问的是占总共三明治的话 = [3/m + 1/(m-4)] /4

本月三明治题的原题

所属分类: GMAT考试

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