Question 937763
a car traveled at 50 km/h for 4 hours and at 60 km/h for 3 1/2 hours.
 what was the average speed for the whole journey???
:
Average speed is total dist/total time
Find the total distance
4(50) + 3.5(60) = 410
:
{{{410/(4+3.5)}}} = 54{{{2/3}}} mph