8th Class Mathematics Rational Numbers Question Bank Rational Numbers

  • question_answer
    The product of two numbers is \[\frac{5}{9}\]. If one of the numbers is \[\frac{-35}{24},\] find the other.

    A)  \[\frac{8}{7}\]                                  

    B)                         \[\frac{-8}{21}\]                              

    C)                         \[\frac{-3}{7}\]                                

    D)                         \[\frac{8}{21}\]

    Correct Answer: B

    Solution :

    Product \[=\frac{5}{9}\] Given number \[=-\frac{35}{24}\] \[\therefore \] The other number                 \[=\frac{5}{9}+\left( \frac{-35}{24} \right)\] \[=\frac{{{\cancel{5}}^{1}}}{{{\cancel{9}}^{3}}}\times \frac{{{\cancel{24}}^{8}}}{{{\cancel{-35}}_{-7}}}=\frac{1\times 8}{3\times -7}=\frac{8}{-21}\]


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