题目内容
一件衣服先提价
,再降价
,现在的售价与原价相同.______.
| 1 |
| 10 |
| 1 |
| 10 |
(1+
)×(1-
).
=
×
,
=
.
即现价是原价的
.
故答案为:错误.
| 1 |
| 10 |
| 1 |
| 10 |
=
| 11 |
| 10 |
| 9 |
| 10 |
=
| 99 |
| 100 |
即现价是原价的
| 99 |
| 100 |
故答案为:错误.
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