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7th Class Mathematics Rational Numbers Question Bank Rational Number

  • question_answer
    The product of two rational numbers is \[\frac{-9}{16}\]. If one of the numbers is \[\frac{-4}{3}\] what is the other number?

    A) \[\frac{36}{48}\]                                              

    B) \[\frac{25}{64}\]

    C) \[\frac{27}{49}\]                              

    D)        \[\frac{27}{64}\]  

    Correct Answer: D

    Solution :

    Let 'x' be the other number. Let 'x' be the other number \[x\times \frac{-4}{3}=\frac{-9}{16}\] \[\Rightarrow \] \[x=\frac{\frac{-9}{16}}{\frac{-4}{3}}=\frac{-9}{16}\times \frac{-3}{4}=\frac{27}{64}\]


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