Question

Express the following speeds in km/hr
270 m in 12 sec​

Answer 1

270m into km ( 1km = 1000m)

270/1000

= 0.270km

• 12sec into hr {1hr = 3600sec}

12/3600

= 0.0033.....

hope it will help you friend ✌️✌️✨

Answer 2

Step-by-step explanation:

speed =270/12m/s

270/12m-----------1sec

270/12)*60m------60sec

270/12)*60*60m-----60*60sec

270/12)*3600. =3600sec=1h

81000m/h=81kmph