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  5. Direction Sense Test

9th Class Mental Ability Direction Sense Test Question Bank Direction Test

  • question_answer
    In the given figure, B is 300 km eastward of A and C is 400 km North of A. D is in the middle of C B. The C and D is:

    A) \[250\,km\]     

    B)       \[300 km\]

    C) \[250\,\sqrt{2}\,km\]         

    D)       \[350 km\]

    E) None of these

    Correct Answer: A

    Solution :

    Explanation Option [a] is correct. Clearly, \[PC=\sqrt{A{{B}^{2}}+A{{C}^{2}}}=\sqrt{{{(300)}^{2}}+{{(400)}^{2}}}\] \[=\sqrt{90000+160000}=500km.\]      


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