Work problem

This topic has expert replies
Senior | Next Rank: 100 Posts
Posts: 80
Joined: Mon Feb 02, 2009 6:36 am
Thanked: 10 times

Work problem

by billzhao » Tue Feb 24, 2009 1:57 am
Please help to explain. thanks!
Attachments
graph.gif
Yiliang

User avatar
Master | Next Rank: 500 Posts
Posts: 319
Joined: Wed Feb 04, 2009 10:32 am
Location: Delhi
Thanked: 84 times
Followed by:9 members

by sureshbala » Tue Feb 24, 2009 3:14 am
If money charged by M is 6 $, then money charged by P and K will 2$ and 1$ respectively.

Since the money is divided in the ratio of the work contributed by them, the work contributed by M, P and K is in the ratio 6:2:1.

So the time charged by M is 6/9 x(162) and by K is 1/9(162).

Hence the difference = 5/9(162) = 90 hrs