Multiple Choice Questions on During a practice session in a stadium an athlete runs along a circular track and her performance is........... for SSC CHSL Preparation

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Multiple Choice Questions

During a practice session in a stadium an athlete runs along a circular track and her performance is...........

Quantitative Aptitude (CHSL) Geometry
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    During a practice session in a stadium an athlete runs along a circular track and her performance is observed by her coach standing at a point on the circle and also by her physiotherapist standing at the centre of the circle. The coach finds that she covers an angle of 72° in 1 min. What will be the angle covered by her in  1 second according to the measurement made by her physiotherapist?

    2.4

    Correct Answer

    1.2

    Incorrect Answer

    4.8

    Incorrect Answer

    It depend on the position of the coach on the circular track

    Incorrect Answer
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    Explanation:

    According to the measurement of the coach the athlete covered the angle = 72o in 60 sec

    So, the angle made by the athlete at the circumference is = 72o

    Now,

    The physiotherapist is standing at the centre of the circle.

    As we know that the angle made at the centre by the chord is twice the angle made by the chord at the circumference.

    So, according to the measurement of physiotherapist the athelete will make 144o in 60 sec

    The angle made by the athlete in 1 second according to the physiotherapist = 144o/60=2.4o         

    By: Himani Bihagra
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