61). 18 litres of pure water was added to a vessel containing 80 litres of pure milk. 49 litres of the resultant mixture was then sold and some more quantity of pure milk and pure water was added to the vessel in the respective ratio of 2 : 1. If the resultant respective ratio of milk and water in the vessel was 4:1. what was the quantity of pure milk added in the vessel? (in litres)
| A). 4 |
| B). 8 |
| C). 10 |
| D). 12 |
|
62). In a vessel, there is a mixture of apple, orange and mango juices in the ratio of 3 : 5 : 4 respectively. A quantity of 12 litres from the mixture is replaced by 8 litres of apple juice. Thereafter the quantities of apple and orange juices in the resultant mixture become same. Find out the initial quantity of mixture in the vessel.
| A). 76 litres |
| B). 65 litres |
| C). 60 litres |
| D). 80 litres |
|
63). A vessel contains a mixture of Grape, Pineapple and Banana juices in the respective ratio of 4 : 6 : 5. 15 litres of this mixture is taken out and 8 litres of grape juice and 2 litres of pineapple juice is added to the vessel. If the resultant quantity of grape juice is 10 litres less than the resultant quantity of pineappje juice. what was the initial quantity of mixture in the vessel? (in litres)
| A). 120 |
| B). 150 |
| C). 105 |
| D). 135 |
|
64). A 20 litre mixture contains milk and water in the respective ratio of 3 : 2. Then 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removals and replacements, what is the ratio of milk and water in the resultant mixture respectively?
| A). 17 : 23 |
| B). 9 : 1 |
| C). 4 : 17 |
| D). 5 : 3 |
|
65). A jar has 60 litres of milk. From the jar. 12 litres of milk was taken out and replaced by an equal amount of water. If 12 litres of the newly formed mixture is taken out of the jar, what is the final quantity of milk left in the jar?
| A). 38.4 litres |
| B). 40 litres |
| C). 36 litres |
| D). 28.61itres |
|
66). In 1kg mixture of sand and iron. 2000 is iron. How much sand should be added, so that the proportion of iron becomes 5%?
| A). 3 kg |
| B). 4 gms |
| C). 5 gms |
| D). 6 kg |
|
67). The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of wheat so that the percentage of low quality wheat becomes 5%?
| A). 150 kgs |
| B). 135 kgs |
| C). 50 kgs |
| D). 85 kgs |
|
68). A grocer purchased 2 kg. of rice at the rate of Rs.15 per kg. and 3 kg. of rice at the rate of Rs.13 per kg. At what price per kg. should he sell the mixture to earn \( \Large 33\frac{1}{3} \)% profit on the cost price?
| A). Rs.28.00 |
| B). Rs.20.00 |
| C). Rs.18.40 |
| D). Rs.17.40 |
|
69). From a container of milk, 5 litres of milk is replaced with 5 litres of water. This process is repeated again. Thus in two attempts the ratio of milk and water became 81 : 19. The initial amount of milk in the container was
| A). 50 litres |
| B). 45 litres |
| C). 40 litres |
| D). 25 litres |
|
70). A vessel contains a mixture of milk and water in the respective ratio of 3: 1. 32 litres of mixture was taken out and replaced with the same quantity of milk so that the resultant ratio between the quantities of milk and water in the mixture was 4 : 1 respectively. If 10 litres of mixture is again taken out from the vessel, what is the resultant quantity of water in the mixture? (in litres)
| A). 24 |
| B). 30 |
| C). 20 |
| D). 36 |
|
