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

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

7 boys and 7 girls

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 154
Joined: Wed May 21, 2014 4:29 amFollowed by: 1 member
Thanked: 8 times
by talaangoshtari » Fri Jul 03, 2015 7:52 pm
In how many ways can 7 boys and 7 girls sit in a row?

1. Boys and girls at alternate positions
2. No two boys sit together

I cannot understand the difference between 1 and 2
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 363
Joined: Sun Oct 17, 2010 3:24 pmFollowed by: 3 members
Thanked: 115 times

by theCEO » Fri Jul 03, 2015 8:19 pm
talaangoshtari wrote:In how many ways can 7 boys and 7 girls sit in a row?

1. Boys and girls at alternate positions
2. No two boys sit together

I cannot understand the difference between 1 and 2
1. Boys and girls at alternate positions
This means no boy can sit beside another boy and no girl can sit beside another girl

2. No two boys sit together
This means no boy can sit beside another boy however the girls can sit anywhere they want to sit.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10392
Joined: Sun Jun 23, 2013 6:38 pmFollowed by: 511 members
Location: Palo Alto, CA
Thanked: 2867 times
GMAT Score:800

by [email protected] » Sat Jul 04, 2015 10:11 am
Hi talaangoshtari,

It would probably help if you drew some sketches of the possibilities...

We have 7 boys and 7 girls sitting in a row.

1st option: Boys and girls sit at alternate positions

We could have....

BGBGBGBGBGBGBG

or

GBGBGBGBGBGBGB

2nd option: No two boys sit together

We could have either of the options above, but we could ALSO have...

BGGBGBGBGBGBGB (notice the two girls sitting next to one another in the 2nd and 3rd spots)

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Legendary Member
Posts: 518
Joined: Tue May 12, 2015 8:25 pm
Thanked: 10 times

by nikhilgmat31 » Thu Jul 09, 2015 3:08 am
Brent, Can you please solve this question.

Also please provide me a chapter to read Permutation,Combination & Probability.

I am very weak in these three concepts.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1