Task: Question Answering
Input (English): Problem: in an office , totally there are 6400 employees and 65 % of the total employees are males . 25 % of the males in the office are at - least 50 years old . find the number of males aged below 50 years ? 
Options: a ) 1040 , b ) 2080 , c ) 3120 , d ) 4160 , e ) none of these
Output (English): c