Question
Solution
x2/y2 + y2/x2 -2 = (x/y) ² + (y/x) ² - 2 x (x/y) x (y/x) = [(x/y) - (y/x)]2 Taking squaring root. [x/y - y/x] .
Profit percentage received on a product when sold for Rs.450 is equal to the percentage loss incurred when the same product is sold for Rs.300. Find the...
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Marked price and cost price of an article are in the ratio 7:4, respectively. If the article was sold at discount of 20%, then find the gain percentage.
A shopkeeper bought two televisions at a certain amount. He sold the first television at a 30% profit and the second television at a 20% loss. If the se...
The cost price of 23 mangoes is Rs.200. Because of bad quality of mangoes, the shopkeeper has to sell mangoes at a loss that is equal to selling price o...
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