BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

table

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 345
Joined: Wed Mar 18, 2009 6:53 pm
Location: Sao Paulo-Brazil
Thanked: 12 times
GMAT Score:660

table

by shibal » Thu Jul 16, 2009 4:18 am
Seven men and seven women have to sit around a circular table so that no 2 women are together. In how many different ways can this be done?

i don't have the OA sorry...
Top
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 338
Joined: Fri Apr 17, 2009 1:49 am
Thanked: 9 times
Followed by:3 members

by kaulnikhil » Thu Jul 16, 2009 1:11 pm
7! *6!
Top
Master | Next Rank: 500 Posts
Posts: 345
Joined: Wed Mar 18, 2009 6:53 pm
Location: Sao Paulo-Brazil
Thanked: 12 times
GMAT Score:660

by shibal » Thu Jul 16, 2009 4:00 pm
could u pls give the way you did it?
Top
Master | Next Rank: 500 Posts
Posts: 338
Joined: Fri Apr 17, 2009 1:49 am
Thanked: 9 times
Followed by:3 members

by kaulnikhil » Thu Jul 16, 2009 9:52 pm
keep one man fixed .... now u can arrange remaining six men in 6! ways .. there are 7 places left in between these 7 men ..so 7 women can be arranged at 7 places in 7! ways ..
so we have 6!*7!
Top
Post new topic Post Reply
• Page 1 of 1