ELDER TO and OLDER THAN is the correct usage. Older than is usually used when talking about general things. ELDER TO specifically talks about age.
If 50L of liquid containing 20% spirit is added with 15L of water then what would be the percentage of spirit in the resulting mixture?
From a barrel that contains pure alcohol, 10% alcohol is withdrawn and replaced with water. If the same process is repeated once more, then the quantity...
A container contains 600 lit of pure milk and P liters of water. Ratio of 25% of mixture to the initial quantity of water is 3 : 4 and when Q liters of ...
Quantity of water in a 360 litres mixture (alcohol + water) is 20 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed...
if 70 liters of milk solution contains 60% milk, how much milk should be added to make the solution 80% milk?
In a mixture of 45 litres, the ratio of wine to water is 2 : 3. If this ratio is to be 1 : 3, then what is the quantity of water needed to be added?
A 160-litre mixture contains petrol and water, only in ratio 5:3, respectively. How much water should be added in the mixture so that the quantity of wa...
Anjum bought 1 litre of milk at Rs. 50 per litre, 500 grams of sugar for Rs. 30 per kg, and 200 grams of coffee for Rs. 125 per kg. From these ingredien...
Jar A contains ‘X’ ml mixture of milk and water in the ratio of 4 :3. Jar B contains ‘X’ ml mixture of milk and water in the rat...