MathematicsWhich ratio is larger in the following pairs?9: 20 or 8: 13

Which ratio is larger in the following pairs?


9: 20 or 8: 13


  1. A
    9:20
  2. B
    8:13
  3. C
    Both are equal
  4. D
    None 

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    Solution:

    Given the pairs 8:13 and 9:20.
    LCM for 20 and 13 is 260.
    9:20= 9 20   9 20 × 13 13 = 117 260   8:13= 8 13   8 13 × 20 20 = 160 260   160>117  
    8:13>9:20  
    The larger ratio in 9:20   and 8:13   is 8:13  .
    Hence option 2 is the answer.
     
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