Question

in 8 minutes Rajan jobs 800 metres what is his speed in kilometre per hour

Answer 1

 8 minutes=800 metres
⇒ for his speed in m/min=800/8=100m/min
∴ change the speed to km/h=0.06×100=6 km/h

Answer 2

Speed = Distance / Time

= 800 / 8 m/min

= 100 m/min

= (100 / 1000) / 60 km/hr

= 6 km/hr Ans.