Question

A person crosses a 600m long street in 5 minutes. What is his speed in km per hour?

Answer 1

600m. = 600/1000 km
           =0.6km.
5 min. = 5/60 hr.
           =1/12 hr.

Now, Speed =Distance/time
                    =6*12/10
                    = 7.2km/hr.

Answer 2

hey dear
here is your answer

given :
distance = 600m
time = 5min = 300seconds

speed = distance/time = 600/300 = 2m/s = 7.2 km/hr

hope it helps ☺