2. Solved Papers
  3. Railways

Railways R.R.C. (Gorakhpur) Solved Paper Held on 1st Shift 23-11-2014

  • question_answer
    If the radius of a circle is reduced by 20%, what will happen to its area?

    A) Area will be reduced by 20%

    B) Area will be reduced by 64%

    C) Area will be reduced by 44%

    D) Area will be reduced by 36%

    Correct Answer: D

    Solution :

    Change in area \[=\]\[-20-20+\frac{20\times 20}{100}\] \[=-40+4=-36%\] Hence, its area will be reduced by 36%.


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