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