Question

A taxi takes 45 minutes to cover a distance of 18 km. Calculate its speed in km/h and m/s

Answer 1

given:time =45 mins=45/60hrs.
     distance=18km
   speed=distance/time
     =18*60/45=24km/hr
{1km/hr=5/18 m/s}
so 24*5/18=6.66m/s

Answer 2

Speed in km/hr=18/45/60=18*0.75[45/60=0.75]
                                     =24km/hr
Speed in m/s=18000/0.75*3600[0.75hr=0.75*3600sec]
                   =6.66m/s