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The number that is 50% greater than 80 is what percent less than the number that is 25% less than 200?

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Important Questions on Quantitative Skills

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Machines X and Y pack books continuously, each working at a constant rate, but Machine Y works 50% faster than Machine X. If Machine Y packs 48,000 more books in a 24-hour period than Machine X does, what is Machine X’s packing rate in books per hour?
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By selling the burger at Rs. 260 per piece, Sameer gains 30%. Find the cost price of the burger per piece?
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A 735 gm sample of a 16% (by weigh) solution of iodine in alcohol is kept for three days. Some of the alcohol gets evaporated and the concentration of the solution becomes 20% (by weight). What amount of alcohol gets evaporated?
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The interest rate, compounded annually, that would bring a principal of Rs. 1,200 to a final value of Rs. 1,650 in 2 years is approximately:
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An amount becomes 3 times in 6 years on a certain rate of simple interest. In how many years it will become 24 times?
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The value of a car depreciates at the rate of 10% per annum. If its present value is Rs. 121500, then what was the value of the car two years ago?
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Ram lent Rs. 800 to a friend for 2 years and one-fourth of this amount to another friend for 3 years. He received Rs. 275 in total as simple interest. What was the rate of interest?
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Parikshit invests Rs. 1546 in BNP bank at a certain rate of compound interest per annum. At the end of 8 years, he finds that his money has doubled. What approximately is the rate of interest BNP bank paid him?