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Thread: lake on a map 1:75000 size of 2.5cm; what is scale if lake is 4.1cm ?

  1. #1

    lake on a map 1:75000 size of 2.5cm; what is scale if lake is 4.1cm ?

    Hi guys! This is the problem: if there is a lake on a map 1:75000 size of 2.5cm, what is the scale of the map if there is a lake size of 4.1cm. Tnx

    p.s. sorry if its wrong section, English is not my first language and i'm not sure where should i put this problem

  2. #2
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    Quote Originally Posted by dndn1998 View Post
    Hi guys! This is the problem: if there is a lake on a map 1:75000 size of 2.5cm, what is the scale of the map if there is a lake size of 4.1cm. Tnx

    p.s. sorry if its wrong section, English is not my first language and i'm not sure where should i put this problem
    what are your thoughts?

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  3. #3
    Quote Originally Posted by dndn1998 View Post
    Hi guys! This is the problem: if there is a lake on a map 1:75000 size of 2.5cm, what is the scale of the map if there is a lake size of 4.1cm. Tnx

    p.s. sorry if its wrong section, English is not my first language and i'm not sure where should i put this problem



    im thinking like this.

    2.5*75000=187500

    then 187500:4.1=45731

    Answer 1:45731

  4. #4
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    Quote Originally Posted by dndn1998 View Post


    im thinking like this.

    2.5*75000=187500

    then 187500:4.1=45731

    Answer 1:45731
    Correct - assuming we are talking about representation of the same lake at two different maps.

    The answer the book could be looking for is 46000 - rounding the answer to two significant digits.
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  5. #5

    lake on a map 1:75000 size of 2.5cm; what is scale if lake is 4.1cm ?

    Quote Originally Posted by Subhotosh Khan View Post
    Correct - assuming we are talking about representation of the same lake at two different maps.

    The answer the book could be looking for is 46000 - rounding the answer to two significant digits.
    Ty Ty
    Last edited by stapel; 08-23-2017 at 12:25 PM. Reason: Splitting new question from existing thread to new thread.

  6. #6
    Elite Member stapel's Avatar
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    Quote Originally Posted by dndn1998 View Post
    If there is a lake on a map 1:75000 size of 2.5cm, what is the scale of the map if there is a lake size of 4.1cm.
    This question isn't making sense. The first part of the question gives you the scale, being "1 to 75,000"; and it tells you the size of the lake on the map, being 2.5 centimeters. So either the second size of the lake is wrong, or else the given scale didn't come from this question.

    Would it be possible to provide the text of the exercise in the original language, plus tell us what language it is? Or are you sure that you discarded the correct piece of information (namely, the specified scaling factor)? Thank you!

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