Khan/khan-exercises — Issue #4004: Rate problems 2 - addition is wrong
Author: KhanBugz
Created: 2011-10-08 01:19:00+00:00
State: open
Labels: chrome, win7

Reporter: toffa@ymail.com

1) Your maths says 6 miles/60mph = 18 minutes.
2) Your maths says 12 minutes + 18 minutes = 18 minutes.

The final answer may be correct but the steps are wrong.

[rate_problems_2.html?seed=52&problem=average-speed](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/rate_problems_2.html?seed=52&problem=average-speed)

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Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.187 Safari/535.1

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