Task: Question Answering
Input (English): Problem: the average age of 15 students of a class is 15 years. out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, the age of the 15 th student is
Options: a. 11, b. 15, c. 6, d. 8, e. 76
Output (English): a