Multiple Choice Questions on The length breadth and height of a room are 363m 528m and 693m respectively Determine the longest ta........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

The length breadth and height of a room are 363m 528m and 693m respectively Determine the longest ta...........

Quantitative Aptitude (RRB NTPC) Mensuration 2D
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    The length, breadth and height of a room are 363m , 528m and 693m respectively. Determine the longest tape that can measure the three dimensions of the room exactly.

    33 metre

    Correct Answer

    35 metre

    Incorrect Answer

    27 metre

    Incorrect Answer

    30 metre

    Incorrect Answer
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    Explanation:
    The longest tape that can measure the three dimensions of the room exactly is the HCF of (363,528,693)
    Factors of
    363= 3×11×11
    528= 3×11×2×2×2×2
    693= 3×11×3×7
    HCF(363,528,693)=3×11=33
    33 metre is required length of tape

    By: Barka Mirza
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