In a glass of milk, the proportion of pure milk and water is 3:1, how much of the mixture must be withdrawn and substituted by water so that the resulting mixture may becomes half pure milk and half water ?
Answer: D Milk and water ratio = 3:1 Total = 4 We take half of pure milk and half of water. => 3/2 + 1/2 = 2 Then total remainder = 2/4 = 1/2 unit.
Q. No. 38:
A container contains 120L of milk. From this container, 12L of milk was taken and replaced by exactly equal quantity of water. This process was further repeated two times. How much milk is contained in the container at the end of operation ?
Equal amounts of water were poured into two empty jars of different capacities, which made one jar 1/4 full and the other jar 1/3 full. If the water in the jar with lesser capacity is, then poured into the jar with the greater capacity, what fraction of the largest jar will be filled with water ?