有道GMAT数学题

来源：百度知道 编辑：UC知道 时间：2024/05/24 12:54:49
64. a rectangular floor is covered by a rug except for a strip P meters wide along each of the four edges. if the floor is M meters by N meters, what is the area of the rug, in square meters?
a mn-p(m+n)
b mn-2p(m+n)
c mn-p2
d (m-p)(n-p)
e (m-2p)(n-2p)
要解题过程哦 谢谢

毯子的面积等于地板面积减去四周留边，宽度都为p的面积
e (m-2p)(n-2p)

大概就是上图的意思，这道题我也纠结很久啊！

e