1.Of the 28 T-shirts in a drawer,six are red,five are blue,a

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1.Of the 28 T-shirts in a drawer,six are red,five are blue,and the rest are white.If Bob selects T-shirts at random whilst packing for a holiday,what is the least number he must remove from the drawer to be sure that he has three T-shirts of the same color?
2.In an alien language,jalez borg farn means"good math skills".Nnrf klar borg means "math in harmony"and darko klar farn means "good in gold".
What is "harmony gold"in this language?

1,抽屉里28件T恤衫里,有6件红的,5件蓝的,其余的都是白的. 如果bob在为假日出行打包的时候随机选.至少要选出几件才能保证他有3件同样颜色的?
应该是7件吧.最坏的情况就是3种颜色分配均匀.也就是2红2蓝2白.那么保证有3件是同样颜色的话就再选一件.
答案是7.
2, 在外语（特指不常用或未知语言）中,jalez borg farn的意思是“出色的数学技巧-good math skill”.Nnrf klar borg的意思是“和谐的数学--math in harmony ”, darko lkar farn的意思是“good in gold”.那“和谐的-金子harmony gold”在这种语言里是什么意思?
对比看看咯：
jalez borg farn=good math skill
Nnrf klar borg=math in harmony
darko klar farn = good in gold
那borg=math
farn=good
klar=in, 因为klar 在in的位置上
darko=gold
剩下的nnrf=harmony
那harmony gold=darko nnrf.
注意看看那个"外语"的语序和英语是反着的.
老兄真牛,这是非洲的一个8-9年级数学竞赛题~~~全部的在这里：http://www.samf.ac.za/samo/j2q2002.pdf.用adobe reader打开.
还有,非洲的奥数果然比中国低~~~一等啊

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