2. Questions Bank
  3. 7th Class
  4. Mathematics
  5. Exponents and Power

7th Class Mathematics Exponents and Power Question Bank Exponents and Powers

  • question_answer
    Simplify \[\frac{{{p}^{4}}{{q}^{3}}\times {{p}^{2}}{{r}^{4}}\times {{q}^{-2}}\times {{r}^{3}}}{{{p}^{-3}}{{q}^{3}}{{r}^{3}}}\].

    A)  \[{{p}^{3}}{{q}^{4}}{{r}^{7}}\]   

    B)         \[{{p}^{3}}{{q}^{4}}{{r}^{10}}\]

    C)  \[{{p}^{-9}}{{q}^{2}}{{r}^{-4}}\]

    D)         \[{{p}^{9}}{{q}^{-2}}{{r}^{4}}\]  

    Correct Answer: D

    Solution :

     \[\frac{{{p}^{4}}{{q}^{3}}\times {{p}^{2}}{{r}^{4}}\times {{q}^{-2}}{{r}^{3}}}{{{p}^{-3}}\,{{q}^{3}}\,{{r}^{3}}}\]\[={{p}^{9}}\,\,{{q}^{-2}}\,\,{{r}^{4}}\]


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