Howard, Cris and Keith were hired by Microsoft Corporation to do a programming job which they must finish within 10 days. After monitoring them for 2 days, Gates, according to his combinatorial observation program found out that Howard and Keith can do the programming work in 12 days whereas Howard and Cris in 20 days. Now, Bill wants to find out how many days would it take for Cris to do the work alone?
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.