某商店把某种服装按成本价提高50%后,标价又以7折优惠卖出,
某商店把某种服装按成本价提高50%后,标价又以7折优惠卖出,
结果每件仍获利20元,这种服装每件成本是多少?
结果每件仍获利20元,这种服装每件成本是多少?
数学人气:705 ℃时间:2020-01-26 10:57:35
优质解答
成本是:20÷(1×1.5×0.7-1)=100元
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