8th Class Mathematics Rational Numbers Question Bank Rational Numbers

  • question_answer
    If p is \[\frac{3}{4}\]of q and \[\mathbf{q}=\frac{2}{5}+\frac{5}{6}\], then p+q is

    A)  \[\frac{21}{24}\]                      

    B)  \[\frac{21}{8}\] 

    C)  \[\frac{22}{8}\]                        

    D)  \[\frac{23}{8}\]

    Correct Answer: B

    Solution :

     (b): \[p=\frac{3}{4}\times q\]             \[p=\frac{3}{4}\left( \frac{2}{3}+\frac{5}{6} \right)=\frac{3}{4}\left( \frac{4+5}{6} \right)=\frac{3}{4}\times \frac{9}{6}=\frac{3}{4}\times \frac{9}{6}=\frac{3}{4}\times \frac{3}{2}=\frac{9}{8}\]


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