Khan/khan-exercises — Issue #9079: Adding and subtracting decimals word problems - Unit not specified, question is unclear
Author: KhanBugz
Created: 2011-12-20 13:29:55+00:00
State: open
Labels: firefox, wrong-or-unclear, xp

Reporter: seb.khanacademy@koocotte.org

"How much faster" can be expressed as an integer or as seconds.

Ashley is 20 sec, Brandon is 15s

Brandon is 0.25 or 25% faster, and 5 sec faster. We can not know which result is right.

[adding_and_subtracting_decimals_word_problems.html?seed=73&problem=1](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=73&problem=1&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=73&problem=1&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20100101 Firefox/8.0

MathJax is loaded, ready, queue length: 0