Question

A person swims 100 m in the first 40 s, 80m in the next 40 s and 45 m in the last 20 s.what is the average speed?

Answer 1

Average speed = Total distance / Total Time
= (100 + 80 + 45) / (40 + 40 + 20)
= 225 / 100
= 2.25 m / s