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Mrs. Jones sold two houses for $80, 000 each. One house was sold at a 20 percent loss and the other at a 20 percent gain. Colum
Mrs. Jones sold two houses for $80, 000 each. One house was sold at a 20 percent loss and the other at a 20 percent gain. Colum
admin
2009-05-19
37
问题
Mrs. Jones sold two houses for $80, 000 each. One house was sold at a 20 percent loss and the other at a 20 percent gain.
Column A Column B
The gain minus the loss 0
选项
A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案
B
解析
琼斯太太以每幢$80,000的价格卖了两幢房屋。一座房子以亏损20%售出,另一座房子以赢利20%售出。
解:本题的正确答案是(B)。两幢房子一幢亏损,一幢赢利,但最后的售价相同,这说明它们的原价一定不同,设亏损房屋价为x,获利房屋价为y,则由题意可得:x(1-20%)=80000 → x=80000/(1-20%);y(1+20%)=80000 → y=80000/(1+20%); so, x>y → y-x<0
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