Task: Question Answering
Input (English): Problem: simple interest on a certain sum at a certain annual rate of interest is 1 / 9 of the sum. if the numbers representing rate percent and time in years be equal, then the rate of interest is :
Options: a. 5, b. 8, c. 3 1 / 3, d. 2 2 / 3, e. none of these
Output (English): c