作者pit868 (钧)
看板GRE_Verbal
标题[计量] 机经
时间Sat Aug 30 23:44:02 2008
1.There are 5 green balls, 3 black balls and 2 red balls in a box. If 2 balls
are taken from it without replacement what is the probability that the
selected balls are red?
2.If 'N' is the number of two digit numbers that are not the divisible by 7 and
5, then the value of n is?
A. 61
B. 83
C. 75
D. 56
3.A person went to market with a red and a green bag and bought 10 carrots & 6
radishes. On the way to home he distributed vegetables into the two bags in
such a way that no bag is empty. In how many ways can he do this?
Answer:150
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1F：→ tryme:第三题答案应该是75吧? 11*7-2 202.71.92.74 08/31 00:12
2F：推 feii:第二题有人会吗? 感觉题目怪怪的 剩A跟B选择 140.138.145.38 08/31 02:14
3F：推 eva7493:A吧@@ 118.160.65.82 08/31 02:34