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A carpenter wants to sell chairs. If he sells them at per chair, he would be able to sell all the chairs. But for every increase in price, he will be left with one additional unsold chair. At what selling price would he be able to maximise his profits (assuming unsold chairs remain with him)?
(a)
(b)
(c)
(d)

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Important Questions on Profit & Loss
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A shopkeeper makes a profit of by selling an object for . Had the cost price and selling price been interchanged, it would have led to a loss of . With the latter cost price, what should be the new selling price to get a profit of ?

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Find the change in the percentage profit for a fruit vendor who, after finding of the fruits rotten, increased his selling price by over and above that he was already charging?

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Find the selling price of goods if two salesmen claim to make profit each, one calculating it on cost price while another on the selling price, the difference in the profits earned being and selling price being the same in both the cases.

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A shopkeeper calculates percentage profit on the buying price and another on the selling price. What will be their difference in profits if both claim a profit of on goods sold for ?

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A pharmaceutical company made strips of tablets at a cost of . The company gave away strips of tablets to doctors as free samples. A discount of was allowed on the printed price. Find the ratio of profit if the price is raised from to per strip and if at the latter price, samples to doctors were done away with. (New profit/old profit)

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A merchant makes a profit of by selling an article. What would be the percentage change in the profit percent had he paid less for it and the customer paid more for it?

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An article costing was marked above the cost price. After two successive discounts of the same percentage, the customer now pays . What would be the percentage change in profit had the price been increased by the same percentage twice successively instead of reducing it?

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Divya goes to buy fruits and after a lot of bargaining is able to get the price of a dozen apples reduced by from the initial price, thereby enabling her to get 1 apple extra for every rupee saved. (Getting no discount on the extra apple). What is the initial price of a dozen apples?
