Problem Statement
A can finish a job in 15 days and B in 20 days. In how many days can they finish it together?
Explanation
Add daily work. One by fifteen plus one by twenty equals seven by sixty per day. Time equals sixty by seven days, which is eight and four sevenths.
Code Solution
SolutionRead Only
1/T = 1/15 + 1/20 = 7/60 ⇒ T = 60/7
