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    I don't think i should have been marked down.
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    I agree with you - this is a sort of semi trick question, perhaps your teacher just wasn't thinking at the time.
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    /o/ I'm still on 20 no matter how It's phrased...
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    It's not phrased badly, but your first instinct might be to say '5 mins per piece!' since it looks unthreatening, rather than thinking about time per cut.

    Ask your teacher how long it would take to saw a board into one piece
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    This has been over forums before, this either isnt yours or you've waited a long time to ask here.
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    Clearly either your teacher is having an off-day, or they are unqualified.
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    The question is so ambiguous that 33 minutes could be correct. I mean it doesn't say that the size of the board is the same. But assuming it is then yeh 20 is obviously correct.
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    What's Marie doing with a saw in the first place? In my day, girls did home economics and boys did woodwork. And ten minutes seems a long time for that piece of wood pictured. She needs to pull her finger out. Or buy a circular saw.
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    It's definately 20... but you can see how easy it is to slip up and get 15.

    You have to look at the question in terms of how "cuts" made in the board, rather than the no. of parts it's split up into.

    It's one cut per minute; therefore, 2 cuts would take 20 minutes (just double it)
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      20
      If it was a square it would take 15 minutes.

      10 to cut it in half, then 5 to cut one of those halves in half (half the time, because it's half the distance)

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      Someone won his PGCE in the lottery
     
     
     
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