Question

If a man covers 600 metres in five minutes, his speed im km/ hr

Answer 1

First convert 600 m to km which is equal to 0.6 km ( 1m = 1/1000 km = 600/1000 = 0.6)

now convert 5 minutes in hrs so,

1 min = 1/60 hrs = 5/60 = 1/12

so,

Speed= distance / time

speed= 0.6 / 1/12

speed= 6×12/10

speed= 72/10

speed= 7.2 km/hr.

Hence proved.