Question 77717
if Edwin can do the job in 2 hrs, then in t hrs he does t/2 of the job similarly, Beau does t/3 of the job


together they do the whole job, so the equation is {{{(t/2)+(t/3)=1}}}...multiplying by 6 gives 3t+2t=6


so 5t=6 and t=6/5