Problem Statement
A and B can do a job in 8 days together. A alone takes 12 days. After working together for 3 days, A leaves. How many more days for B to finish?
Explanation
A rate is one by twelve. B rate is one by eight minus one by twelve equals one by twenty four. In 3 days together they complete three by eight. Remaining is five by eight. B takes (5/8)/(1/24) equals 15 days.
Code Solution
SolutionRead Only
Remain = 1 − 3/8 = 5/8 ⇒ t = (5/8)/(1/24) = 15
