5th Class Mental Ability Arithmetical Reasoning Question Bank Arithmetical Reasoning

  • question_answer A farmer built a fence around his plot. He used 27 fence poles on each side of the square plot. How many poles did he need altogether?

    A)  108                

    B)  100

    C)  104    

    D)  None of these

    Correct Answer: C

    Solution :

          Since each pole at the corner of the plot is common to its two sides, so we have Total number of poles needed \[=27\times 4-4\] \[\text{= 108 - 4 = 104}\]

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