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IMPORTANT
Earn 100

A dishonest dealer marks up the price of his goods by 20% and gives a discount of 10% to the cus­tomer. Besides, he also cheats both his supplier and his buyer by 100 grams while buying or selling 1 kilogram. If it is known that the shopkeeper takes a discount of 10% from his supplier and he disregards this discount while marking up (i.e. he marks up at the undiscounted price), find the per­centage profit for the shopkeeper.

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Important Questions on Profit & Loss

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Cheap and Best, a kirana shop bought some apples at 4 per rupee and an equal number at 5 per rupee. He then sold the entire quantity at 9 for 2 rupees. What is his percentage profit or loss?
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A watch dealer sells watches at 600 per watch. However, he is forced to give two successive dis­counts of 10% and 5% respectively. However, he recovers the sales tax on the net sale price from the customer at 5% of the net price. What price does a customer have to pay him to buy the watch?
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 Deb bought 100 kg of rice for 1100 and sold it at a loss of as much money as he received for 20 kg rice. At what price did he sell the rice?
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A carpenter wants to sell 40 chairs. If he sells them at 156 per chair, he would be able to sell all the chairs. But for every 6 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)?
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A shopkeeper makes a profit of Q% by selling an object for 24. Had the cost price and selling price been interchanged, it would have led to a loss of 62.5Q%. With the latter cost price, what should be the new selling price to get a profit of Q%?
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Find the change in the percentage profit for a fruit vendor who, after finding 20% of the fruits rotten, increased his selling price by 10% over and above 15% that he was already charging?
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Find the selling price of goods if two salesmen claim to make 25% profit each, one calculating it on cost price while another on the selling price, the differ­ence in the profits earned being 100 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 20% on goods sold for 3000?