Two couples

Expert replies

crackgmat007: Legendary Member; Posts: 882; Joined: Fri Feb 20, 2009 2:57 pmFollowed by: 1 member; Thanked: 15 times; GMAT Score:690

by crackgmat007 » Sun Oct 11, 2009 10:19 am

Two couples and one single person are seated at random in a row of five chairs. What is the probability that neither of the couples sits together in adjacent chairs?

1/5
1/4
3/8
2/5
1/2

pls explain

Like this post

Source: Beat The GMAT — Problem Solving | Sun Oct 11, 2009 10:19 am

CrackGMAC: Senior | Next Rank: 100 Posts; Posts: 53; Joined: Wed Dec 10, 2008 5:47 am; Location: Rorkee

by CrackGMAC » Mon Oct 12, 2009 7:02 am

I am getting 4/5 as answer. 1/5 is for they will sit together.

Can you please confirm everything posted in correct

Beat The GMAT

Like this post

crackgmat007: Legendary Member; Posts: 882; Joined: Fri Feb 20, 2009 2:57 pmFollowed by: 1 member; Thanked: 15 times; GMAT Score:690

by crackgmat007 » Mon Oct 12, 2009 7:57 pm

yes the question is correctly posted.

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review