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Let’s assume that pipe B alone can the tank in x minutes, so pipe B fills 1/xth part of tank in one minute. Pipe A can fill the tank 5 times faster than pipe B, so pipe A fills 5/xth part of tank in one minute. Together, the two pipes fill the tank in 50 minutes, so together they fill 1/50th part in one minute. => 1/x + 5/x = 1/50 ⇒ 6/x = 1/50 ⇒ x = 300 minutes ∴ Pipe B alone fills the tank in 300 minutes.
A sum is lent at 20% pa compound interest. What is the ratio of increase in the amount in the 4th year to that in the 5th year?
Sakshi purchased 36 chocolates for a total of Rs. 45. She then sold 24 of these chocolates for Rs. 39. If Sakshi's profit percentage from this transacti...
A shopkeeper planned to sell 150 shirts each priced at Rs 1,250 in a particular year. Each shirt, if it had been sold at the mentioned price would have ...
How much groundnut powder at Rs. 90 a kg. should be added to 56 kg. of cashew powder at Rs.310 a kg. so that by selling the mixture for Rs. 280 a kg, a ...
Aanchal sold a watch to Aman at a 20% profit. Subsequently, Aman sold the watch to Amit at a 15% profit. The difference between the selling price at whi...
A shopkeeper sold three types of items A, B and C. He sold items A and B in the ratio of 16:21, while sold items C and A in the ratio of 5:8. The pri...
A Shopkeeper sold an article at 5% loss. If he had sold it for Rs. 350/- more, he would have made 20% profit, find the selling price of the article?
If the cost price of 5 items is equal to the selling price of 8 items, then what will be the profit or loss percentage?
An article is sold for Rs. 480 at 20% loss. If this article was sold at 12.5% profit, what would have been its selling price?
P purchased a book from registered store and gets 11% discount while Q purchased the same book from a roadside stall and got 17% discount. If Q paid Rs....
