A can do a piece of work 40 days. B can do work in 60 days. In how many days they will complete the work together?
Choose the correct choice from the following answers:  A) 15 days  B) 16 days  C) 19 days  D) 17 days  E) 24 days
LCM = 120, Ratio= 40:60=2:3   No of days= 120/(2 + 3) = 90/5 = 24 days   ANSW24 daysR:24 days
<result>E</result>
A can do a piece of work 40 days. B can do work in 60 days. In how many days they will complete the work together?