2. Questions Bank
  3. 10th Class
  4. Mathematics
  5. Areas Related to Circles

10th Class Mathematics Areas Related to Circles Question Bank Area of Circle

  • question_answer
    A circular garden of radius is 15 m is surrounded by a circular path of width 7 m. If the path is to be covered with tiles at a rate of Rs. 10 per\[{{m}^{2}}\], then what is the total cost of the work?

    A)  Rs. 8410         

    B)  Rs. 7140         

    C)  Rs. 8140      

    D)  Rs. 7410

    Correct Answer: C

    Solution :

    (c):   Area of circular path = Area of ring. Area of path \[=\pi \left( {{R}^{2}}-{{r}^{2}} \right)\] Total cost \[=\text{Area}\times \text{cost}/{{m}^{2}}\]              


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