Answers

2015-01-18T23:45:59+05:30
Distance travelled by car = 60km
time taken by car = 45min. = 45/60 hr = 3/4 hr.
speed = distance/time
         = 60/(3/4)
speed = 60*4/3 = 80km/hr.  
0
2015-01-18T23:49:36+05:30
Time=45min=45/60hr    distance=60km     speed= dist/time=6o÷45/60=60×60/45=80km/hr
0
Time=45min=45/60hr distance=60km speed= dist/time=6o÷45/60=60×60/45=80km/hr