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# Re: SQL Fun Challenge #3

From: Howard J. Rogers <hjr_at_dizwell.com>
Date: Fri, 12 Mar 2004 22:54:48 +1100
Message-ID: <4051a50f\$0\$3954\$afc38c87@news.optusnet.com.au>

"Daniel Morgan" <damorgan_at_x.washington.edu> wrote in message news:1079077451.572264_at_yasure...
> Gave this one to my students tonight.
>
> There are two solutions ... one easy and one that requires coding
> a function. Can you find them both?
>
> "Train 1" leaves station A heading east at 10:00am, "Train 2" leaves
> station B heading west at the same time. The two trains are moving
> towards each other on the same track and are 114 miles apart.
>
> The trains move at a constant 50 miles per hour. There is a bird perched
> on "Train 1". The bird begins to fly east as soon as "Train 1" begins
> to move. The bird flys at a constant 20 miles per hour and flies back
> and forth between "Train 1" and "Train 2" as the trains approach each
> other. The bird has perfect recoil (it spends 0 time perched on either
> train and experiences no acceleration and no deceleration). How many
> miles does the bird fly before the trains collide?
>
> And since my students got this first: Yes the bird is dimensionless.

Hardly a tasty snack for my cat then.

I think my cat has got so fat it has entered the fifth dimension.

Regards
HJR Received on Fri Mar 12 2004 - 05:54:48 CST

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