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 6 students is 14 years and that of the other 8 students is 16 years. the age of the 15 th student is
Options: a. 9 years, b. 13 years, c. 14 years, d. 21 years, e. 25 years
Output (English): b