A bus travels a distance of 120km with a speed of 40km/hr and returns with a speed of 30km/hr , calculate the average speed for the entire journey
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time taken with speed of 40km/hr= 120/40=3hrs
time taken while returning from journey with speed of 30km/hr=120/30=4hrs
total time taken=4+3=7hrs
average speed=total distance travelled/total time taken=(120+120)/7=240/7=34.2km/hr.
hence, avg. speed=34.2km/hr...
time taken while returning from journey with speed of 30km/hr=120/30=4hrs
total time taken=4+3=7hrs
average speed=total distance travelled/total time taken=(120+120)/7=240/7=34.2km/hr.
hence, avg. speed=34.2km/hr...
Spurthi794:
thank you sooo much ur answer was very helpful
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