标题:
又有2个问题
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作者:
tbs
时间:
2002-12-14 16:33
标题:
又有2个问题
technicians equally receive defective products from a box containing 88 defective products, if the number of the rest of defective products in the box less 2 than the number of technicians, then the following cannot be the number of technicians?
5 12 16 9 18 My ans: 12
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[确认]12正确 就是除法的题。
给一表,a b两班 给出median score 和mean score
问a+b的median是否大于mean?
A) a+b=79
B) a=42 b=38
???谁帮我解释一下解法,非常谢谢
作者:
猫猫头
时间:
2002-12-14 17:41
是不是说剩下的比the number of technicians少2??
ab+a-2=88==>a(1+b)=90,可是我觉得16也不对呀???
第二题这样的题目出现过好多次了,每次都不一样,挺烦的,所以要视具体题目考虑
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