7th Class Mathematics Algebraic Expressions Question Bank Algebraic Expressions

  • question_answer
    The product of \[\left( \frac{4p}{5}-3 \right)\] and \[\left( \frac{5p}{8}-6 \right)\] is_____.

    A)  \[\frac{{{p}^{2}}}{2}+\frac{267}{40}p-18\]

    B)  \[\frac{{{p}^{2}}}{2}-\frac{267}{40}p-18\]

    C)  \[\frac{{{p}^{2}}}{2}+\frac{267}{40}p+18\]

    D)  \[\frac{{{p}^{2}}}{2}-\frac{267}{40}p+18\]

    Correct Answer: D

    Solution :

    We have, \[\left( \frac{4p}{5}-3 \right)\times \left( \frac{5p}{8}-6 \right)\] \[=\frac{{{p}^{2}}}{2}-\frac{24}{5}p-\frac{15}{8}p+18=\frac{{{p}^{2}}}{2}-\frac{267}{40}p+18\]


You need to login to perform this action.
You will be redirected in 3 sec spinner