The following question has three statements. Study the question and the statements and decide which of the statement(s) is necessary to answer the question. Two persons A and B were employed to do a job. What is the amount which B received after completion of the job? Statement I: Ratio of efficiencies of A and B is 3 : 2. Statement II: The whole work got completed in 30 days. Statement III: At the starting, they committed to complete the work together in 24 days for Rs. 6500. Correct Answer All the statements together are not sufficient to answer the question. From statement III: They committed to complete the work in 24 days but the work got completed in 30 days (Statement II); Hence there must have been some skip days also or some change in the efficiencies of A and B. ∴ Statement I that provides the ratio of efficiencies is of no use to find the ratio of total units of work done by each. ∴ All the statements together are not sufficient to answer the question.