Khan/khan-exercises — Issue #7235: Counting 2 - Wrong Answer
Author: KhanBugz
Created: 2011-11-29 01:17:26+00:00
State: open
Labels: safari, snowleo, wrong-or-unclear

When I click on the hint, it says the answer is 13, but when I type it into the box it says it's wrong.

[counting_2.html?seed=40&problem=handshakes](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=40&problem=handshakes&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=40&problem=handshakes&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2214%5C%22%22%2C26%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2213%5C%22%22%2C30%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2215%5C%22%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2213%5C%22%22%2C13%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2213%5C%22%22%2C4%5D%5D)

["14","13","15","13","13"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1

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