7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer ) \[2:6::3:9\]cannot be written as:

    A) \[\frac{2}{6}=\frac{3}{9}\]                   

    B) \[\frac{1}{3}={}^{1}/{}_{3}\]

    C) \[2:3::6:9\]        

    D) \[2:9::6:3\]

    Correct Answer: D

    Solution :

    (d) \[2:6::3:9\] \[\Rightarrow \]\[\frac{2}{6}=\frac{3}{9}\Rightarrow \frac{1}{3}=\frac{1}{3}\] But \[2:9::6:3\]would mean \[\frac{2}{9}=\frac{6}{3}\] or \[\frac{2}{9}=2\] (which is incorrect)

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