Task: Question Answering
Input (English): Problem: the average salary / head of allthe workers in a workshop is rs . 1200 , if the average salary / head of 10 technician is rs . 1400 and the average salary / head of the rest is rs . 900 , the total no . of workers in the work - shop is ? 
Options: a ) 18 , b ) 17 , c ) 15 , d ) 19 , e ) 21
Output (English): b