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