Two persons P and Q working together can do a piece of work in 18 days. Q alone can do it
in 36 days. Q started the work, and after working for 6 days he left the work. P then took up
the remaining work. How many days will P take to complete the remaining work?
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.