2. Questions Bank
  3. 8th Class
  4. Mathematics
  5. Comparing Quantities

8th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    The simple interest at x% for x years will be Rs. x on a sum of__.

    A)  Rs. X              

    B)  Rs. 100x        

    C)  \[\text{Rs}\text{.}\left( \frac{100}{x} \right)\]           

    D)         \[\text{Rs}\text{.}\left( \frac{100}{{{x}^{2}}} \right)\]     

    Correct Answer: C

    Solution :

    \[\text{S}\text{.I=Rs}\text{. x,}\]\[\text{Rate=x }\!\!%\!\!\text{ }\], \[\text{Time}=x\text{ years}\] \[\text{S}\text{.I=}\frac{P\times R\times T}{100}\Rightarrow x=\frac{P\times x\times x}{100}\] \[\Rightarrow P=Rs.\left( \frac{100}{x} \right)\]


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