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An athlete runs 200 meters race in 24 seconds. His speed in km/h is

A. 20

B. 24

C. 28.5

D. 30

Answer: Option D

Solution(By Examveda Team)

$$\eqalign{ & {\text{Speed of athlete}}, \cr & = \frac{{200\,{\text{m}}}}{{24\,{\text{secs}}}} \cr & = \frac{{200 \times 18}}{{5 \times 24}} \cr & = 30\,{\text{km/hour}} \cr} $$

This Question Belongs to Arithmetic Ability >> Speed Time And Distance

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Comments ( 7 )

  1. Samrat Asoka
    Samrat Asoka :
    3 years ago

    18/5

  2. Ananda Ananda
    Ananda Ananda :
    3 years ago

    Super solved sir

  3. Sathish Nunavath
    Sathish Nunavath :
    4 years ago

    How can 18/5dont understand me

  4. Avinash Dhage
    Avinash Dhage :
    6 years ago

    i got it its formula.

  5. Avinash Dhage
    Avinash Dhage :
    6 years ago

    why use 18/5?

  6. Examveda
    Examveda :
    8 years ago

    Hello Varsha,
    18/5 is use for converting meter/seconds into kilometer/hour. Actually its come from 3600/1000.

  7. Varsha Pawar
    Varsha Pawar :
    8 years ago

    why theres 18/5 in first example?

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