题目内容
一件商品,先提价10%,若要恢复原价约降低( )
A.10% | B.8% | C.9% | D.11% |
6-6÷(6+6一%)
=6-6÷66一%
=6-
=
≈9%.
故选:7.
=6-6÷66一%
=6-
6一 |
66 |
=
6 |
66 |
≈9%.
故选:7.
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题目内容
A.10% | B.8% | C.9% | D.11% |
6一 |
66 |
6 |
66 |