Question : A bottle holds 8 litres of a mixture of milk and water in a ratio of 3 : 1. 3 litres of water is added to the given mixture. Find the new ratio of milk and water in the mixture.

Option 1: 3 : 2

Option 2: 1 : 3

Option 3: 2 : 3

Option 4: 6 : 5

Question : In a 64 L mixture, the alcohol and water are in the ratio of 1 : 3 respectively. 32 L of the mixture is taken off and replaced with 16 L of water. What is the new ratio of alcohol and water respectively?

Option 1: 1 : 5

Option 2: 5 : 12

Option 3: 2 : 7

Option 4: 3 : 10

Question : In a mixture, water and milk are in the ratio of 2 : 3. What is the amount of water that is to be added to 20 kg of this mixture to make the ratio of water and milk in the new mixture 1 : 1?

Option 1: 3 kg

Option 2: 2 kg

Option 3: 4 kg

Option 4: 5 kg

Question : If the ratio of the volumes of two cylinders is 7 : 5 and the ratio of their heights is 5 : 7, then what is the ratio of their radii?

Option 1: 5 : 7

Option 2: 3 : 4

Option 3: 5 : 9

Option 4: 4 : 5

Question : In what ratio must water be mixed with milk worth Rs. 50 per litre so as to produce a mixture worth Rs. 35 per litre? (water is available free of cost)

Option 1: 3 : 7

Option 2: 7 : 5

Option 3: 3 : 5

Option 4: 2 : 7