Khan/khan-exercises — Issue #12312: Counting 2 - there are seven peaple in a group
Author: KhanBugz
Created: 2012-01-27 20:37:17+00:00
State: open
Labels: ie8, not-showing, win7

Reporter: peercanada@gmail.com

if evryone shakes evryones hand exactly once how many handshakes occurred?

[counting_2.html?seed=140&problem=handshakes](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=140&problem=handshakes&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=140&problem=handshakes&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%228%5C%22%22%2C254%5D%2C%5B%22incorrect-activity%22%2C%22%5C%227%5C%22%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%226%5C%22%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2249%5C%22%22%2C29%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%5D)

["8","7","6","49"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; HPNTDF; InfoPath.2; .NET4.0C)

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