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
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
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.

130-point 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.

(C) 2008 GMAT Club - [t]m07#12[/t]

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Legendary Member
Posts: 2134
Joined: Mon Oct 20, 2008 11:26 pmFollowed by: 25 members
Thanked: 237 times
GMAT Score:730
by logitech » Fri Jan 16, 2009 6:01 pm
If Ben were to lose the championship, Mike would be the winner with a probability of 1/4, and Rob 1/3 If the probability of Ben being the winner is 1/7 , what is the probability that either Mike or Rob will win the championship?
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 97
Joined: Mon Jan 05, 2009 11:04 pm
Thanked: 2 times

by sjd00d » Fri Jan 16, 2009 11:23 pm
Is it 37/84 by any chance? If so, let me know and i'll explain.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 418
Joined: Wed Jun 11, 2008 5:29 am
Thanked: 65 times

by bluementor » Sat Jan 17, 2009 5:01 am
Probability of Mike winning = Ben looses AND Mike wins = (6/7)*(1/4)
Probability of Rob winning = Ben looses AND Rob wins = (6/7)*(1/3)

Prob(Mike or Rob to win) = Prob(Mike to win) OR Prob(Rob to win)
=(6/7)*(1/4) + (6/7)*(1/3)
=(6/7)*(1/4 + 1/3)
=(6/7)*(7/12)
=6/12
=1/2

-BM-
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 2134
Joined: Mon Oct 20, 2008 11:26 pmFollowed by: 25 members
Thanked: 237 times
GMAT Score:730

by logitech » Sat Jan 17, 2009 6:21 pm
bluementor wrote:Probability of Mike winning = Ben looses AND Mike wins = (6/7)*(1/4)
Probability of Rob winning = Ben looses AND Rob wins = (6/7)*(1/3)

Prob(Mike or Rob to win) = Prob(Mike to win) OR Prob(Rob to win)
=(6/7)*(1/4) + (6/7)*(1/3)
=(6/7)*(1/4 + 1/3)
=(6/7)*(7/12)
=6/12
=1/2

-BM-
You rock!
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1