Mrs.Jones sold two houses for $80,000each.One house was sold at a 20percent loss and the other at a
题目
Mrs.Jones sold two houses for $80,000each.One house was sold at a 20percent loss and the other at a 20 percent gain
问The gain minus the loss与0比较大小
答案
X * 80% = Y * 120% =80,000
X > Y
20% X >20% Y
loss > gain
gain-loss< 0
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