题目内容
一件上衣先提价
,再降价
,价格不变.______(判断对错)
| 1 |
| 8 |
| 1 |
| 8 |
(1+
)×(1-
)
=
×
=
即现价是原价的
,比原价降低了.
故答案为:×.
| 1 |
| 8 |
| 1 |
| 8 |
=
| 9 |
| 8 |
| 7 |
| 8 |
=
| 63 |
| 64 |
即现价是原价的
| 63 |
| 64 |
故答案为:×.
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