Raman & Krishnan will complete a job in 6 days and 12 days respectively according to their capacity. Govindan will complete the same of piece of work in a single day that which Raman & Krishnan both do in a single day. If Krishnan and Govindan wishes to complete the same work, in how many days they take to finish the work?
A. 5 days
B. 3 days
C. 4 days
D. 4.5 days
Answer:B
Raman & Krishnan will complete a job in 6 days and 12 days respectively according to their capacity. Govindan will complete the same of piece of work in a single day that which Raman & Krishnan both do in a single day. If Krishnan and Govindan wishes to complete the same work, in how many days they take to finish the work?
A. 5 days B. 3 days C. 4 days D. 4.5 days