Question

1) For a man who walks 720m at a uniform speed of 2m/s then runs at
a uniform speed of 4m/s for 5 minutes and then again walks at a
speed of im/s for 3 minutes his average
a) 2.5 m/s b)2 m/s
c)3 m/s find the solution of this problem ​

Answer 1

What do we have to find please mention..........