Question 506379
Work rate Together (Harold + Jim)  = 1/6
Harold (work rate) = h = 1/8
Jim (work rate) = j = ? 
Harold (work rate) + Jim (work rate)   = Work rate Together (Harold + Jim)
1/8 + j =1/6
j=1/6-1/8
Taking LCM
j=[(1*4)-(1*3)]/24
j=(4-3)/24 
j= 1/24
j=one job / 24 days
Jim can do the job working alone in 24 days.