受甲型H1N1流感的影响,猪肉价格下降了30%,设原来猪肉价格为a元/

受甲型H1N1流感的影响,猪肉价格下降了30%,设原来猪肉价格为a/千克,则现在的猪肉价格为___________/千克。

答案

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