A car travels first 30 km with a uniform speed of 60 km h-1 and then next 30 km with a uniform speed of 40 km h-1. Calculate : (I) the total time of journey, (ii) the average speed of the car

  • 2
I. 15.75 hrs
2. 3.809
  • 0
a raise to the power 4 minus A
  • -1
What are you looking for?