An athlete runs 200 meters race in 24 seconds. His speed (in km/hr) is :
An athlete runs 200 meters race in 24 seconds. His speed (in km/hr) is :
[A]28.5
[B]30
[C]24
[D]20
30
$latex Speed = \frac{Distance }{Time}=\frac{200}{24}m/s&s=1$
$latex =>\frac{200}{24}m/s=\frac{200}{24}\times \frac{18}{5}=30 km/hr&s=1$
Hence option [B] is the right answer.