November 17, 2010

if a 0.1mm paper is folded 100 times...



if a 0.1mm paper is folded 100 times then what will be the thickness
of it after 100 foldings?


18 comments:

  1. 0.1 * 2^100 = 12.676.506.002.282.300.000.000
    Km

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  2. it cannot be folded after 8 times viji

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  3. Hah, all of the above! Altho', Ólafur, you need to use a more accurate calculator - should be 126,765,060,022,822,940,149,670.3205376Km.

    You could also argue that the thickness is 0.2mm each time you fold it if you allow for it to be unfolded after every fold.

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  4. you can't fold more than 8 times.....

    reason physics concept

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  5. 10 mm if you could fold it a hundred times.

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  6. 0.1*2^100=
    126765060022822940149670320537,6 mm

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  7. it vil increase 100 times of current thickness

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  8. The paper is still .1 mm no matter how many times you fold it

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  9. (2^100).1
    to lazy to do the math but thats the equasion

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  10. I got it to 1m, but then it was too thick to fold even one more time, and there were 87 folds left

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  11. Actually its (2^99).1 mm . Cuz it takes one fold to make it 0.2mm thick. And I do belive you can fold something as many times as you want, as long as you're not the big blind.

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  12. I have one puzzle.
    12 = 1 + 2 = 3
    345 = 3 + 4 + 5 = 12 = 1 + 2 = 3
    576 = 18 = 9
    Find digit of the sum in single digit.

    How many numbers are there between 0 to 123456789 whose sum of digit is 5?

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  13. Thiss one's is easy if you look at the question.
    I didn't even need a calculator.
    They have not mentioned that we have to fold the paper in half. So, technically, we could just turn the edge over, and it would count as a fold.
    Thus we have 100 folds, each 0.1 mm thick, making a total of 0.1x100=10 mm.
    You can thank me later.

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