Khan/khan-exercises — Issue #13898: Rate problems 1 - Answer might be wrong or skipped too many passages
Author: KhanBugz
Created: 2012-02-15 17:27:50+00:00
State: open
Labels: firefox, lion, other

Reporter: b25zero1@gmail.com

When showing the steps of this problem (Rate Problem 1 - exercise 1), the last 1-2 steps just fast forward without showing the calculations.

It's missing converting hours to minutes

and I believe the answer is wrong too:
when I do the calculations Tt = 3-(Dm/36)=1h/9 > (1h/9) *(60min/1h) = 6.6 min

6.6 should round to 7

can you please clarify how do you get the variables in further verifiable explanation steps

thanks
b

ps. always thank you and congratulations for providing all this :)

[rate_problems_1.html?seed=55&problem=3](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/rate_problems_1.html?seed=55&problem=3&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/rate_problems_1.html?seed=55&problem=3&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%227%5C%22%5D%22%2C2400%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C13%5D%2C%5B%22hint-activity%22%2C%220%22%2C25%5D%2C%5B%22hint-activity%22%2C%220%22%2C32%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%221%5C%22%5D%22%2C260%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C19%5D%5D)

[["7"],["1"]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:10.0.1) Gecko/20100101 Firefox/10.0.1

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