Mathcounts Question for Math Team
Favorites|Homepage
Subscriptions | sitemap
HOME > > Mathcounts Question for Math Team

Mathcounts Question for Math Team

[From: ] [author: ] [Date: 12-01-08] [Hit: ]
2-1, 2-3, 3-2, 3-4, 4-3, 4-5,......
Two six sided dice are rolled. What is the probability that the positive difference between the numbers rolled is 1? Express your answer as a common fraction.

-
There are 36 different possible rolls, of which you have 1-2, 2-1, 2-3, 3-2, 3-4, 4-3, 4-5, 5-4, 5-6, 6-5 which have a difference of 1. So 10/36 or 5/18

-
the number of events in two dice rolling =36
the ones where delta =1 are 1,2 2,3 3,4 4,5 5,6 and 2,1 3,2 4,3 5,4 6,5
that is 10/36 or p=5/18

-
5 / 18 (?)
1
keywords: for,Team,Question,Mathcounts,Math,Mathcounts Question for Math Team
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .