if land and water in ratio of1;2 and northeen hemisphere is 2;3 than tell me sothern hemisphere ratio

If land and water in ratio of1;2 and northeen hemisphere is 2;3 than tell me sothern hemisphere ratio

sachinbatra Default Asked on 4th March 2016 in Maths.
Add Comment
  • 1 Answer(s)

    Answer: 4: 11

    Solution:-
    If the ratio of land and water = 1: 2
    Then, the part of the earth = 1/3 and part of water = 2/3

    The ratio of earth and water on northern hemisphere = 2: 3
    Then, part of earth on norther hemisphere = 2/5 and part of water on northern hemisphere  =  3/5

    Getting a common denominator
    Then, part of earth and water in the word = 10/30 and 20/30
    part of earth and water in northern hemisphere = 6/30 and 9/30

    Then, part of earth in southern hemisphere = 10/30 – 6/30
    = 4/30
    And, part of water in southern hemisphere = 20/30 – 9/30
    = 11/30

    Then, the ratio of earth and water in southern = (4/30)/(11/30)
    = 4/11
    = 4: 11

    Hence, the correct answer is 4: 11.

    Anurag Mishra Professor Answered on 4th March 2016.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.