Question A worker takes 3 hours to do a job. A new worker takes 5 hours. How long does it take them if they work together?
time taken by a worker= 1/3 hours time taken by the new worker= 1/5 hours time taken to complete the work if they work together = 1/3 + 1/5 = 5+3/15 =8/15 =15/8 hours Log in to Reply
time taken by a worker= 1/3 hours
time taken by the new worker= 1/5 hours
time taken to complete the work if they work together
= 1/3 + 1/5
= 5+3/15
=8/15
=15/8 hours