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Railways R.R.C. (Mumbai) Solved Paper Held on 17-11-2013

  • question_answer
    The surface area of a cube is 726 sq cm. Find the side of the cube?

    A) 12 cm              

    B) 11 cm

    C) 9 cm                            

    D) 10 cm

    Correct Answer: B

    Solution :

    Let the side of the cube = a cm Then, surface area of a cube = 726 sq. cm \[6{{a}^{2}}=726\] \[{{a}^{2}}=121\] \[a=11\,\,cm\]


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