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Tricky Umbrella Question Stumps Scottish Students

admin by admin
July 30, 2020
in Game
25
Tricky Umbrella Question Stumps Scottish Students



Some Scottish students felt the National 5 Maths Exam was too difficult, particularly this tricky umbrella question. The test is not yet released, so I have re-constructed the problem as best as I could from accounts of the exam. Here is the problem: “Can an umbrella 85 cm long fit diagonally inside a locker with length 40 cm, width 40 cm, and height 70 cm?”

My blog post for this video

Source: The Scottish Sun

Thanks to Max Krass finding a mistake in the early access version:

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Comments 25

  1. Rohan JS says:
    1 year ago

    There is an equation for the diagonal of cuboid…
    Diagonal=whole root of sum of squares of sides

    Reply
  2. NO NAME says:
    1 year ago

    Its not the sqrt of 8100 it the sqrt of 8092.25

    Reply
  3. Paul Denino says:
    1 year ago

    I used the pythagorean theorem but somehow got the wrong answer
    edit: I forgot to square the √ (40²+40²) which is the length of the bottom side's diagonal line 🙂

    Reply
  4. Akash Halder says:
    1 year ago

    This is the easiest one.

    Reply
  5. saumy sharan says:
    1 year ago

    It was much easy

    Reply
  6. TANIA SAHAI says:
    1 year ago

    He has used the direct formula for calculating the diagonal of cuboid
    (l^2+b^2+h^2)whole square root.
    It is not a difficult question.
    It is just using the formula

    Reply
  7. Ivan Del Rosario Jr. says:
    1 year ago

    Can the umbrella fit?
    Yes or no?
    Hahahaha

    Reply
  8. Gregorstone says:
    1 year ago

    Please tell me that this task was without a calculator to at least count 70 square + 2 x 40 square and take the root of 8100.

    Reply
  9. Sebastian Simon says:
    1 year ago

    Did the students really say the exam was too difficult, especially the umbrella question or except the umbrella question?

    Reply
  10. David von Platen says:
    1 year ago

    If the umbrella handle has a radius of more than 5 cm it would not fit into the locker. Is this assumption right on my part?

    Reply
  11. Herr Schmidt says:
    1 year ago

    As a simpleton of course I use pythagoras twice, knowing very well that it is not elegant and that I solve a riddle meant for 12 year olds like a 12 year old.

    Reply
  12. e1woqf says:
    1 year ago

    Too easy for this channel.

    Reply
  13. common indian says:
    1 year ago

    this video was really a waste of time

    Reply
  14. amar kulkarni says:
    1 year ago

    To be precise its 89.99 i Guess!!

    Reply
  15. Justin Santos says:
    1 year ago

    Yes it will fit because the length of the diagonal of the locker is 90 cm, and the umbrella is 85 cm long. It won't fit if you put it vertically but it should be stored from point P to point M.

    Reply
  16. Davi Ernest says:
    1 year ago

    Diagonally

    Reply
  17. Callum C says:
    1 year ago

    If that was a test in my exam I would probably fail it. Not because it is hard, but because I would overthink it and do something crazy…

    Reply
  18. JSSTyger says:
    1 year ago

    I'm guessing that 90>85.

    Reply
  19. Michael Georgievski says:
    1 year ago

    How is this hard???!!!

    Reply
  20. Tangent 200 says:
    1 year ago

    Got it in less than a second

    Reply
  21. Dave704 says:
    1 year ago

    In school we learned a formular for the space diagonal of a cuboid which is square-root of lenght square + width square + height square which is basically the same method as your 2nd method

    That's why i found this task to be very easy

    Reply
  22. ferrari458960 says:
    1 year ago

    Its a spatial pythygoras, 3 edges instead of 2 edges in the formula. Where is the problem?

    Reply
  23. Kodey Rolston says:
    1 year ago

    Ez

    Reply
  24. Marieke says:
    1 year ago

    Solved it by watching to the thumbnail: simply using pythagoras you don't even need to do it twoce as doing it once already gives you the answer: yes

    Reply
  25. John Galt Line says:
    1 year ago

    Solved it with method 2. As for if being too difficult or not, I suppose that depends if students at the level the test was given for have been taught the pythagorean theorem or not. (or distance formula)

    Reply

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