Related Questions

The following questions have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. A diluted alcohol solution has 8 litres of alcohol and the rest is water. Find the amount of this solution which should be replaced with pure alcohol. Statement I: A new solution which has 30% alcohol concentration is to be formed. Statement II: The amount of final mixture is 40 litres. Statement III: The amount of water in the initial mixture was 32 litres.