A qualified worker digs a well in 5 hours. He invites 3 apprentices, both capable of working 3/4 as fast and 2 trainees both working 1/5 as fast as he. If the five-person team digs the same well, how much time does the team need to finish the job?	Choose the correct choice from the following
A) 1:24 B) 1:34 C) 1:44 D) 1:41 E) 2:14
and answer is correct as you have calculated : 100/56 hrs that is 1.62 hrs - 1 hr and 41 minutes, so 1:41, hence, 1:41.
<result>D</result>
A qualified worker digs a well in 5 hours. He invites 3 apprentices, both capable of working 3/4 as fast and 2 trainees both working 1/5 as fast as he. If the five-person team digs the same well, how much time does the team need to finish the job?