题目内容
一种商品提价
后,再降价
,现价与原价的比( )
| 1 |
| 3 |
| 1 |
| 10 |
(1+
)×(1-
),
=
×
,
=
;
>1;
现价比原价贵了.
故选:B.
| 1 |
| 3 |
| 1 |
| 10 |
=
| 4 |
| 3 |
| 9 |
| 10 |
=
| 6 |
| 5 |
| 6 |
| 5 |
现价比原价贵了.
故选:B.
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