Question

If an athlete takes 50 s to complete a race of 200 m. Find his speed.

Answer 1

Answer:

200/50=4meter per second

Answer 2

Answer:

Speed = \frac{Distance }{Time}=\frac{200}{24}m/s

=>\frac{200}{24}m/s=\frac{200}{24}\times \frac{18}{5}=30 km/hr

Hence option [B] is the right answer.