Question : One litre of milk costs INR 40. Water is mixed with milk and the mixture cost becomes INR 30 per litre. Find the ratio of water and milk in the mixture.

Option 1: 2 : 5

Option 2: 1 : 3

Option 3: 1 : 2

Option 4: 2 : 3

Question : In what ratio, wheat at INR 23 per kg should be mixed with wheat at INR 14 per kg so that on selling the mixture at INR 20 per kg there is a profit of 25%?

Option 1: 5 : 7

Option 2: 3 : 5

Option 3: 2 : 3

Option 4: 2 : 7

Question : A 40-litre mixture of milk and water contains milk and water in the ratio of 7 : 3. How many litres of water should be added to the mixture so that the resulting mixture has 60% water in it?

Option 1: 30

Option 2: 35

Option 3: 20

Option 4: 25

Question : 80 litres of a mixture contains milk and water in a ratio of 27 : 5. How much more water is to be added to get a mixture containing milk and water in a ratio of 3 : 1?

Option 1: 5 litres

Option 2: 10 litres

Option 3: 15 litres

Option 4: 20 litres

Question : In what ratio tea of Rs. 60 per kg should be mixed with tea of Rs. 70 per kg so that on selling the mixture at Rs. 80 per kg there is a profit of 25%?

Option 1: 3 : 2

Option 2: 2 : 3

Option 3: 5 : 2

Option 4: 4 : 1