作者Chantalparis (Chantal)
看板GMAT
标题[机经]数学分类JJ-273.277.284
时间Sun Sep 6 12:56:12 2009
273. There are $10,000 invested in two separate investment schemes. One
with simple interest of 5% and the other is with simple interest of 8%. At
the end of the year, the investor get total of interest return of $710, how
much did he invest in the first scheme? Please pay attention of the total
interest return.
问:JJ给$3,000.
284. A代表一个圆的area,C代表这个圆的circumstance,A :C=1:2/根号pai,求A.
问:JJ给PAI.但算出的值就是与JJ不同.
277. 问一个数X是不是更接近10^ -3而不是10^ -2
1) 已知这个数是更接近10^ -4的而不是10^ -1
2) 已知这个数是更接近10^ -3 而不是10^ -1
把它们转化成小数,放在数轴上
问:JJ给E.但若更接近10^ -4就不可能接近10^ -2,则X不就可以回答题目所问的吗?
感谢大家帮忙!!
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