a publisher sells a book for rs. 168 at profit of 20% . if his cost of production is increases by 30% , what should be the increase in the price of the book so that his percent profit be remains same ?
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a publisher sells a book for rupees 168 at a profit of 20% if is cost of production increases by 30% what should be the increase in the price of the box so that his profit of percentage remains the same.
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