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Let the capacity of the tank be 90 litres {LCM (30 and 45)} Efficiency of pipe ‘A’ = 90 ÷ 30 = 3 litres/hour Efficiency of leak ‘A’ = 90 ÷ 45 = 2 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 3 – 2 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 90 ÷ 20 = 4.5 units/hour Efficiency of pipe ‘B’ = 4.5 – 1 = 3.5 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 90 ÷ (3.5 – 2) = 60 hours
Ramesh sets the price of an item at 36% above its cost price. If he raises the discount offered from 12% to 18%, his profit decre...
An electronic item is sold after two successive discounts of 25% and 10%. If the final selling price is Rs. 6,075, then what was the original marked pri...
The combined cost price of items X and Y is ₹ 450 and the overall profit after selling both is 20%. If the selling price of X is ₹ 300, what i...
A Shopkeeper sold an article at 20% loss. If he had sold it for Rs. 420/- more, he would have made 40% profit, find the selling price of the article?
An item is marked up by Q% above its cost price. If a shopkeeper gives a 30% discount and still makes a profit of 40%, what discount should be given to ...
A fruit vendor sold 'N' kg of mangoes at ₹120/kg. If he purchased the mangoes at ₹(5N - 4)/kg, then his profit percentage is 25%. Find the loss perc...
A trader marked an article 40% above its cost price and sold it after allowing a discount of 25%. If the transaction resulted in a profit of Rs. 30, the...
The difference between the selling price on a discount of 32% and two successive discounts of 20% each on a certain bill is ₹25. Find the actual amoun...
The cost price of 15 mangoes is Rs.220. Because of bad quality of mangoes, the shopkeeper has to sell mangoes at a loss that is equal to selling price o...
