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7th Class Mathematics Rational Numbers Question Bank Rational Number

  • question_answer
    The sum of two rational numbers is \[-3\]. If one of the numbers is \[\frac{-7}{5},\] find the other number.

    A) \[\frac{-8}{5}\]                   

    B)        \[\frac{8}{5}\]

    C) \[\frac{-6}{5}\]                 

    D)        \[\frac{6}{5}\]

    Correct Answer: A

    Solution :

    Let x be the required number. So,  \[x+\left( \frac{-7}{5} \right)=-3\] \[\Rightarrow \]  \[x=-3+\frac{7}{5}=\frac{-15+7}{5}=\frac{-8}{5}\]


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