The Average speed of a train running at the rate of 30km/h during the first 100km at 40 km/h during the second 100km at 50km/h during the third 100km is
Answers
Answered by
9
total distance covered=300 km
total time taken= 100/30 + 100/40 + 100/50
............................ = 47/6
so, Average speed=300/47/6
=38.3 km/hr
total time taken= 100/30 + 100/40 + 100/50
............................ = 47/6
so, Average speed=300/47/6
=38.3 km/hr
gayatreemundra5814:
don't forget to hit this answer as the brainliest
Answered by
3
time for first is 100/40=5/2hr
2nd is 100/50= 2hr
3rd be X
average speed =total distance /total time
=300/(5/2+2+X)=30
X=11/2
3rd speed =100/(11/2)=200/11
2nd is 100/50= 2hr
3rd be X
average speed =total distance /total time
=300/(5/2+2+X)=30
X=11/2
3rd speed =100/(11/2)=200/11
Similar questions