A can do a piece of work 60 days. B can do work in 20 days. In how many days they will complete the work together?
Choose the correct choice from the following choices
A) 12 days B) 16 days C) 15 days D) 17 days E) 18 days
L15 daysM = 60, Ratio= 60:20=3:1   No of days= 60/(3 + 1) = 90/4 = 15 days   ANSWER:15 days
<result>C</result>
A can do a piece of work 60 days. B can do work in 20 days. In how many days they will complete the work together?