The second-hand bookstore reduces the price of the book sold by 10% from the original price, but still gets an 8% profit. Ask what percentage of the bookstore's profit can be obtained from the books sold?
旧书店把出售的书照原标价减低10%，但仍能得8%的利润．问该书店卖出的书原来可以得百分之几的利润？
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