Task: Question Answering
Input (English): Problem: two - third of a positive number and 16 / 216 of its reciprocal are equal . find the positive number . 
Options: a ) 4 / 12 , b ) 4 / 17 , c ) 4 / 15 , d ) 4 / 11 , e ) 4 / 03
Output (English): a