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Railways R.R.C. (Patna) Solved Paper Held on 1st Shift 16-11-2014

  • question_answer
    Ashok has drawn an angle measuring \[45{}^\circ 27'\] when he was asked to draw an angle of\[45{}^\circ \]. The   percentage error in his drawing is?

    A) 0.5%                

    B) 1.0%

    C) 1.5%                

    D) 2.0%

    Correct Answer: B

    Solution :

    The percentage error \[=\frac{45{}^\circ 27'-45{}^\circ }{45{}^\circ }\times 100\] \[=\frac{27'}{45{}^\circ }\times 100\] \[=\frac{27'}{45\times 60}\times 100\] \[=\]\[\frac{2700}{45\times 60}\] \[=\frac{2700}{2700}\] \[=1.0%\]


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