Question 756295
Maria can do job in 2 hours
Paula can do the job in 3 hours
Maria's rate 1/3rd of a job in an hour
Paula's rate 1/2   of a job in an hour

 Therefore 1/3 + 1/2 = 1/x

Taking the common denominator of 6x

            2x + 3x = 6
                 5x = 6
                  x = 6/5 = 1 1/5 hours
   or 1 hour 12 mins (1/5 of 60)
Hope this helps
:-)