perplexus.info :: General : A Better Mousetrap

A Better Mousetrap (Posted on 2004-01-20)

The following question was asked on a math test:

If 6 cats kill 6 rats in 6 minutes, how many will be needed to kill 100 rats in 50 minutes?

Ryan answered 12, Stefanie said 13, and Tom put down 14 for his answer. After looking at their work, the teacher decided to give all three students credit.

What were the arguments that each student made?

See The Solution Submitted by DJ

Rating: 4.1818 (11 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Solution probable	salil	2006-02-12 08:58:46
comment	salil	2006-02-11 11:39:15
re: the real solution	Alan Berris	2004-02-13 08:00:21
re(2): 2/3 of an answer	dave domingo	2004-01-27 09:55:08
re: The real solution	SilverKnight	2004-01-20 21:59:26
The real solution	Penny	2004-01-20 13:11:39
Full solution (even 14)	SilverKnight	2004-01-20 12:52:25
re: 2/3 of an answer	Brian Wainscott	2004-01-20 12:34:50
Solution	Penny	2004-01-20 12:25:56
re: 2/3 of an answer (FYI...)	DJ	2004-01-20 11:37:48
2/3 of an answer	Charlie	2004-01-20 09:09:16
They were all wrong	Dan Porter	2004-01-20 09:04:01

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