Question : In a mixture of 25 litres, the ratio of acid to water is 4 : 1. Another 3 litres of water is added. The ratio of acid to water in the new mixture is:

Option 1: 5 : 2

Option 2: 2 : 5

Option 3: 3 : 5

Option 4: 5 : 3

Question : The ratio of acid and water in the three samples is 2 : 1, 3 : 2, and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of acid and water in the mixture is:

Option 1: 120 : 133

Option 2: 227 : 133

Option 3: 227 : 120

Option 4: 133 : 227

Question : A canister holds 36 litres of a mixture of milk and water in a ratio of 3 : 1. 15 litres of milk is added to the canister. The new ratio of the mixture is:

Option 1: 12 : 5

Option 2: 14 : 3

Option 3: 7 : 4

Option 4: 9 : 4

Question : Two mixtures A and B have the following compositions:
Mixture A has copper and tin in a ratio of 1 : 2
Mixture B has copper and tin in a ratio of 1 : 3
If equal quantities of mixtures A and B are used for producing mixture C, then find the ratio of copper and tin in mixture C.

Option 1: 2 : 5

Option 2: 1 : 5

Option 3: 7 : 17

Option 4: 7 : 12

Question : In what ratio should wheat at Rs. 32 per kg be mixed with wheat at Rs. 24 per kg so that, on selling the mixture at Rs. 39 per kg, there is a profit of 30%?

Option 1: 3 : 1

Option 2: 2 : 3

Option 3: 1 : 4

Option 4: 2 : 5