Task: Question Answering
Input (English): Problem: the average age of 21 students of a class is 21 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 21 th student is 
Options: a ) 164 , b ) 152 , c ) 100 , d ) 182 , e ) 195
Output (English): a