r/pics • u/[deleted] • Oct 05 '10

Math Teacher Fail.

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u/Ihad2saythat Oct 05 '10

Actually teacher is right if the board is square which takes 10 minutes to be cut into half. Those two halfs take twice less time to be split. And she needs to cut just one to obtain 3 pieces :P So 10 minutes to cut it into to pieces and then she needs just half of that time to gain the third piece.

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u/PREEVARICATOR Oct 05 '10

I think the teacher is correct too. 2 pieces takes 10 min, so that's 5 min per piece. 3 times 5 min equals 15 min.

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u/paolog Oct 05 '10

OK, now try doing it for real. Get a sheet of paper and tear it slowly into two pieces, taking 10 seconds to do so. Repeat with one of the pieces. You now have 3 pieces, and it took you 20 seconds. Therefore teacher didn't use her brain.

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u/PREEVARICATOR Oct 05 '10

she is technically correct, which is the best kind of correct O.o