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In a 448 ml mixture, the ratio of copper to gold is 9:5. When 'a + 12' ml of copper and 'a - 10' ml of gold are added to this mixture, the ratio of copp...
From a cask filled with wine, 108.75 liters are first drawn and replaced with water. From this mixture 87 liters are drawn and replaced with water. The ...
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?
In a mixture of milk and water, the quantity of water is 50% more than the quantity of milk. If 16 liters of water is mixed into it, then the quantity o...
A mixture of 512 ml contains milk and whey protein in the ratio of 9:7, respectively. When 'p' ml of whey protein and (p + 36) ml of milk are added to t...
36 liters of milk were kept in a container. 1.8 liters were removed and replaced with water. This procedure was performed one more time. How much milk d...
"In a mixture containing a total of 210 liters, the ratio of petrol to diesel is initially 3:2. A quantity 'p' liters of petrol and 1.5p liters of diese...
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%?