作者LoveDior (GO GO 加油~)
看板GMAT
标题[计量] 一题PS练习题
时间Sat Apr 18 01:10:11 2009
在facebook上有加入一个gmat group
最近发的一道数学练习题 还没公布答案
我猜是(C)180 用5*3*2*3!乱推的
可是满多人猜(B)的
大家有兴趣算算看吗? XD
Six three-female-representative delegations attend an international GMAT
conference sponsored by The 800 Test Academy. The representatives give a
double kiss on a cheek when they are introduced to one another.
How many kisses on a cheek are possible if each delegate gives a double kiss
on a cheek only once with every other attendent except with those of her
delegation?
(A)766
(B)270
(C)180
(D)144
(E) 72
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 59.117.4.170
1F：推 santa:Hi LoveDior~又是你! 这题挺有趣的 我猜(B) 04/18 01:39
2F：→ santa:每人脸上有15个kiss 总共18人 15*18=270 04/18 01:40
3F：→ LoveDior:哈哈~被发现了 >///< 你是数学神人耶(指) 04/18 01:43
4F：→ LoveDior:这题绕的我头好晕 囧 可是double kiss不用*2吗? 04/18 01:46
5F：推 santa:听你这麽说 我也晕了..题目写"a" double kiss所以我看成一个 04/18 02:13
6F：→ santa:否则的话就要猜(A)了 但实在长得很不像答案.... 04/18 02:14
7F：→ LoveDior:哈哈~你也晕了~~这题真的好怪呀!! 囧 04/18 19:26