Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-14

  • question_answer
    If the radius of a circle is increased to 3 times. Then, how many times will its circumference be increased?

    A)  2                    

    B)  \[\frac{1}{3}\]  

    C)  9        

    D)  3

    Correct Answer: D

    Solution :

    Original circumference \[=2\pi \times 3t=6\pi r\] \[=3\times 2\pi r\]


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