Multiple Choice Questions on The inner circumference of a circular race track 14 m wide is 440 m Find radius of the outer circle ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

The inner circumference of a circular race track 14 m wide is 440 m Find radius of the outer circle ........

Quantitative Aptitude ( CCS) Mensuration 2D
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    The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle

    86

    Incorrect Answer

    84

    Correct Answer

    80

    Incorrect Answer

    75

    Incorrect Answer
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    Explanation:

    Let inner radius be r metres. Then, 2πr = 440 ; r = 440×7/44= 70 m.
    Radius of outer circle = (70 + 14) m = 84 m

    By: MIRZA SADDAM HUSSAIN
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