A car goes 20 metres in a second. Find its speed in km/hr?
Note
1 m/sec = (18 ÷ 5)km/hr
The car covers 20 meters in a second
∴ 20 m÷sec = {(20☓18) ÷ 5}= 72 km/hr.
1 m/sec = (18 ÷ 5)km/hr
The car covers 20 meters in a second
∴ 20 m÷sec = {(20☓18) ÷ 5}= 72 km/hr.