Any of these
In the given question below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. In how many years will a sum of money put at simple interest triple itself?
1) The interest earned in 4 years is half the sum at simple interest . 2) The rate of interest is 12.5%. 3) The sum doubles itself in 8 years at simple interest.