Task: Question Answering
Input (English): Problem: a worker can load one truck in 6 hours . a second worker can load the same truck in 8 hours . if both workers load one truck simultaneously while maintaining their constant rates , approximately how long , in hours , will it take them to fill one truck ? 
Options: a ) 2.6 , b ) 2.8 , c ) 3.0 , d ) 3.2 , e ) 3.4
Output (English): e