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7th Class Mathematics Rational Numbers Question Bank Rational Numbers

  • question_answer
    Determine 'y' so that \[y-3\frac{1}{3}=\left( -12\frac{7}{12} \right).\]

    A)  \[-9\frac{1}{4}\]       

    B)  \[3\frac{1}{4}\]        

    C)  \[-9\frac{5}{12}\]                     

    D)  \[9\frac{1}{12}\]

    Correct Answer: A

    Solution :

    (a) \[y=-12\frac{7}{12}+3\frac{1}{3}=\frac{-151}{12}+\frac{10}{3}\] \[=\frac{-151+40}{12}=\frac{-111}{12}=\frac{-37}{4}=-9\frac{1}{4}\]             


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