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7th Class Mathematics Rational Numbers Question Bank Rational Numbers

  • question_answer
    If \[\frac{-4}{9}=\frac{-16}{x},\] what is the value of x?

    A)  36                               

    B) \[-36~\]

    C)  42                               

    D) \[-42\]

    Correct Answer: A

    Solution :

    (a) \[\frac{-4}{9}=\frac{-16}{x}\]: Cross multiply \[\Rightarrow -4x=-9\times 16\]


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