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A nanosecond (ns) is an SI unit of time equal to one billionth of a second, that is, 1⁄1 000 000 000 of a second, or 10−9 seconds. The term combines the prefix nano- with the basic unit for one-sixtieth of a minute.
A bought a laptop for Rs.25000. He spent 16% of the amount that he had paid for buying it for its repair. He then sold the laptop to B and earned a prof...
A shopkeeper bought an article and marked it at Rs. 350. By selling the article at a discount of 4%, he earns a profit of 20%. Find the cost price of th...
The marked price of a smartphone is Rs. 8,400, and the profit earned from its sale is Rs. 1,200. If the ratio of the cost price to the selling price of ...
A trader lists an article such that the marked price to cost price ratio is 6:4. If the discount he gives equals his profit, find the percentage profit.
Some fruits are bought at 20 for Rs.160 and an equal number of fruits at 15 for Rs.140. If all the fruits are sold at Rs.144 per dozen, then what is the...
A man earns a profit of 10 percent by selling a mobile for a certain price. If he sells that mobile at double the price, then what will be the profit p...
A trader marks his goods at 40% above the cost price and offers a discount of 20%. If the trader still makes a profit of Rs. 96, find the cost price.
A shopkeeper sold an article at a discount of 14%. If he had given a discount of 8.5% in place of 14%, then he would have earned Rs. 143 more. If the co...
One article is sold at 15% profit while other is sold at 5% loss such that the difference between their selling prices is Rs. 130. If the cost price of ...