The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

1. 5 litres
2. 15 litres
3. 30 litres
4. 50 litres

Correct Answer: (d) 50 litres

Explanation: According to the United Nations recommendations, 50 litres of water per person per day for the purpose of drinking, washing and other persons.