Khan/khan-exercises — Issue #9028: Least common multiple and greatest common divisor word problems - LCD/GCM word problems
Author: KhanBugz
Created: 2011-12-19 22:00:01+00:00
State: open
Labels: firefox, vista, wrong-or-unclear

The wording of the questions in this topic is ambiguous or unclear.

For example, when buying hot dogs and buns for a party they want to "have no food left over" What they actually want is to ensure that they always have one sausage to one bun (i.e. same number of dogs and buns). Buying dozens or hundreds of dogs and buns for a party suggests a big party, food left over or very greedy people.

Also, with 2 sprinters and 14 long-distance runners it does actually specify that the teams must contain both sprinters and distance runners (although it could be said to be implied in the fact that the topic is LCM/GCD).

[least_common_multiple_and_greatest_common_divisor_word_problems.html?seed=48&problem=lcm-hot-dog-count](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/least_common_multiple_and_greatest_common_divisor_word_problems.html?seed=48&problem=lcm-hot-dog-count&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/least_common_multiple_and_greatest_common_divisor_word_problems.html?seed=48&problem=lcm-hot-dog-count&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%2272%5C%22%22%2C31%5D%5D)

["72"]

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.2.24) Gecko/20111103 Firefox/3.6.24 (.NET CLR 3.5.30729)

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