In a mixture of liquid ,1/5 part is acid 3/5 part is alcohol and the remaining part is water. If the total quantity of the mixture is 20 litres, then how much water (in litre) does the mixture contain?

Show answer & explanation

Answer: (D) 4

Explanation

Acid and alcohol make up 1/5 + 3/5 = 4/5 of the mixture, so water is 1/5 of it. 1/5 of 20 litres = 4 litres.