The hardness of water is primarily due to the presence of calcium and magnesium salts, commonly in the form of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3). Therefore, the correct answer is not among the provided options.
In a mixture of milk & water, 45 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 3. Find initial quantity of mixture. (in litres)
A mixture initially has 40 liters of petrol and an unknown quantity of diesel. When 25% of the mixture is extracted into container P and 10 liters of pe...
200 litres of mixture X contains acetone and glycerine in the ratio 7:9, respectively. 80 litres of the mixture is withdrawn and labelled as mixture Y a...
A mixture of milk and water contains 30% water. On adding 18 litres of water, the quantity of milk becomes 50% more than that of water. Find the initial...
165 litres of Mixture ‘A’ (water + alcohol) contains 30% water and remaining alcohol while 119 litres of mixture ‘B’ (milk + water) contains 20 ...
A 210 litres mixture contains only water and phenyl in the ratio 3:4, respectively. If 70 litres of this mixture is replaced with 25 litres of alcohol, ...
In a mixture of milk and water, the quantity of milk is 40% more than the quantity of water. If 30% of mixture is taken out and (y-15) and (y+35) litres...
150 litres of a mixture contains 30% milk and rest water. If ‘x’ litres of milk is added into the mixture then quantity of water in the final mixtur...
In a vessel, there are two types of liquid, P and Q in the ratio of 5:9. 28liters of the mixture is taken out and 2 liters of type Q liquid is poured in...
