A car travels first 1 upon 3 part of total distance at a speed of 10 km per hr second 1 upon 3 at 20 km per hr and 1 upon 3 part at 60 km per hr. Find out the average speed of car
Answers
Answered by
1
avg speed = total distance /total time
total distance= 3x
tayal time = x/10 + x/20 + x /60
=(6x + 3x + x )/60
=10x/60
=x/6
avg speed= x/(x/6)
=6 km/hr
total distance= 3x
tayal time = x/10 + x/20 + x /60
=(6x + 3x + x )/60
=10x/60
=x/6
avg speed= x/(x/6)
=6 km/hr
Similar questions