Khan/khan-exercises — Issue #10622: Counting 2 - counting 2
Author: KhanBugz
Created: 2012-01-07 21:41:54+00:00
State: open
Labels: lion, safari, wrong-or-unclear

Reporter: pranaysarveiya@gmail.com

The question is William starts counting at 27, and he counts by fours.
If 27 is the first number that william counts, what is the 13th number that he counts.
in the last step, you say what is the 13th number that he counts, but you say 27+(12x4). it is supposed to be 13x4 and when I counted it out, it was 85, but when I did it your way, 27+(13x4), the answer was 79.

[counting_2.html?seed=141&problem=every-n](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=141&problem=every-n&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=141&problem=every-n&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2279%5C%22%22%2C35%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2285%5C%22%22%2C88%5D%2C%5B%22hint-activity%22%2C%220%22%2C37%5D%2C%5B%22hint-activity%22%2C%220%22%2C40%5D%2C%5B%22hint-activity%22%2C%220%22%2C40%5D%2C%5B%22hint-activity%22%2C%220%22%2C41%5D%2C%5B%22hint-activity%22%2C%220%22%2C42%5D%2C%5B%22hint-activity%22%2C%220%22%2C43%5D%2C%5B%22hint-activity%22%2C%220%22%2C44%5D%2C%5B%22hint-activity%22%2C%220%22%2C44%5D%5D)

["79","85"]

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