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

Redeem

coin

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Legendary Member
Posts: 876
Joined: Thu Apr 10, 2008 8:14 am
Thanked: 13 times

coin

by ketkoag » Wed Jun 10, 2009 3:02 am
A coin is tossed 3 times. What is the probability that it will be up with the same side in all the 3 times?

[spoiler]please explain how answer is ¼..[/spoiler]
Top
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 139
Joined: Wed Oct 22, 2008 4:36 am
Thanked: 17 times

by sacx » Wed Jun 10, 2009 3:11 am
you have already posted this ques

https://www.beatthegmat.com/coin-t38336.html
SACX
Top
Legendary Member
Posts: 876
Joined: Thu Apr 10, 2008 8:14 am
Thanked: 13 times

by ketkoag » Wed Jun 10, 2009 3:16 am
ohh, i'm sorry.. :oops:
Top
Master | Next Rank: 500 Posts
Posts: 379
Joined: Wed Jun 03, 2009 3:05 am
Thanked: 19 times
Followed by:1 members
GMAT Score:690

by sreak1089 » Wed Jun 10, 2009 3:17 am
When 3 coins tossed, It can happen in two ways all HHH or all TTT out
of 8 possibilities ==> 2/8 = 1/4
Top
Post new topic Post Reply
• Page 1 of 1