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Santa's Trains

Math brain teasers require computations to solve.


Puzzle ID:#17749
Fun:*** (2.68)
Difficulty:*** (2.14)
Submitted By:JakeAadminus*mod!!!
Corrected By:SPUTNIK2




Santa Claus sometimes helps the elves by making some toys. He's not as fast as the elves, but he can still make 30 toys each hour. In order to keep from getting bored he starts each day by building 50 trains and then switches to building 50 airplanes. Then he switches back to trains and keeps switching back and forth until the day is finished. If Santa starts work at 8:00am, when will he finish his 108th train?

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May 29, 2004

I brute-forced this one and came up with the same, but I like your more elegant solution better.
Jul 08, 2004

What? No lunch break? To bathroom break?
Oct 16, 2004

Bathroom break? Bah! You can tell by Santa's ironman physique that he is way too tough to let stuff like that slow him down.
May 21, 2005

Hmmm. Time to brush up on my math. That should have been easy.
Dec 27, 2005

Santa sits on the toilet while making toys. His coffee pot is right next to the sink. No time lost!
Jul 23, 2006

Yay. I got this one

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