Răspunsuri

2014-03-06T15:01:12+02:00
180 s = 180/60 =3 minute (un minut are 60 sec)
65,5dam = 65,5/100 km
90 km/h=90*(1000 m/3600s)=(90*10)/36 m/s=25 m/s
65m=65*100 cm
25m3=25*1000000cm3=25*1000 litri  
cea cu aria nu o stiu:)