Ram does part of work in 15 days . After that he completes the remaini
Right Answer is: C
It is given that Ram does part of work in 15 days.
Remaining work = 1 – =
Ram completes the remaining work in 4 days with the help of Shyam.
Ram and Shyam together completes work in 4 days.
Hence Ram and Shyam together do the complete work in = days = days