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Sah Mal was a rebel at the time of the Indian Rebellion of 1857, based out of the village of Barout, Uttar Pradesh. He led the Jats of Baraut in rebellion against the East India Company.
An alloy is made of 45% lead, 35% tin, and 20% copper. How much lead should be added to 40 kg of the alloy so that the new alloy contains 55% lead?
If 100 liters of milk solution contains 60% milk, how much milk should be added to make the solution 80% milk?
A mixture of milk and water measures 60 litres. It contains 10% water. How much water should be added to it, so that the water may be 25%?