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Q. If x:y = 3:4, then (7x+3y):(7x-3y) is equal to

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Q. In 4 years the simple interest on certain sum of money is 9/25 of the principal. The annual rate of interest is

Q. By purchasing an article at 20 % discount on the original price and then selling it at a price of 25% above the original price, a trader earns Rs. 200 as the profit. What was the original price of the article?

Q. Feasible solution satisfies __________

Q. A TV can be bought for Rs. 20000 cash or by paying in four equal monthly installments with an initial down payment of Rs. 4000. If the rate of interest for this facility is 8% per annum, then what would be the installment charged for each month?

Q. Guddi invested some money in a bank at rate of 6% per annum. At simple interest, after 9 years, she got Rs. 8470. How much did she invest?

Q. Operations research is the application of ____________methods to arrive at the optimal Solutions to the problems.