Question : The amount of water recommended by the United Nations in 2022 for drinking, washing, cooking, and maintaining proper hygiene is a minimum of___________ litres per person per day.

Option 1: 50

Option 2: 60

Option 3: 40

Option 4: 70

Question : A mixture of 500 litres of alcohol and water contains 20 percent water. How much more water should be added to this so that the water will become 50 percent in the new mixture?

Option 1: 300 litres

Option 2: 400 litres

Option 3: 350 litres

Option 4: 450 litres

Question : In A mixture of 180 litres, the ratio of milk and water is 5 : 1. If this ratio is to be 3 : 2, then find the quantity of water to be further added.

Option 1: 66 litres

Option 2: 70 litres

Option 3: 88 litres

Option 4: 72 litres

Question : 470 litres of a mixture of milk and water contains 5% of water. A mischievous boy added some water in the mixture and now there is 6% water in the new mixture. Find the quantity of water added by the boy in the mixture.

Option 1: 6 litres

Option 2: 8 litres

Option 3: 5 litres

Option 4: 10 litres

Question : In a 255-litre mixture of milk and water, the ratio of milk and water is 4 : 1. Find the quantity of water required to make the ratio of milk and water 4 : 3.

Option 1: 94 litres

Option 2: 51 litres

Option 3: 102 litres

Option 4: 55 litres

Question : A mixture contains milk and water in a ratio of 9 : 5. When 6 litres of water is added to this mixture, the ratio of milk and water becomes 9 : 7. Find the quantity of milk in the mixture.

Option 1: 30 litres

Option 2: 18 litres

Option 3: 27 litres

Option 4: 15 litres