Step-by-step explanation:
Given that,
A student covered a distance of 210 meters in 35 seconds.
We need to find the student's speed in meters/second and also in meters/minute.
Speed, v = distance (d)/time (t)
So,

We know that, 1 minute = 60 seconds

Hence, the student's speed is 6 m/s or 360 meters/minute.