作者nononono ()
看板GMAT
标题[计量] OG里面的Solving problem 练习的第15题
时间Sat Jan 10 16:21:11 2009
"what is the combined area, in square inches, of
the front and back of a rectangular sheet of paper
measuring 8+1/2 inches by 11 inches"
A. 38
B. 44
C. 88
D. 176
E. 187
那个详解如下
since for a rectangular (width)(length)=area
the combined area of the two sides of the sheet is 2*8.5*11=17*11=187
看起来好像很简单...
但我不知为何有点鬼打墙
为什麽要乘以二呢?
combined area 就是合起来的面积不是吗? 还是有其他的意思
谢谢大家回答!
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