a train covers the first 160 km of a journey at 40 km per hour the next 180 kilometre at 45 km per hour and the last 250 km per hour find the total time it takes to complete the journey and the average speed of train during the whole journey
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Answer:
12 hrs, 45km/hr
Step-by-step explanation:
Total Time= 160/40 + 180/45 + 200/50
= 4+4+4 = 12 hrs
speed average= total distance/ total time taken
= (160+180+200)/12
= 540/12 = 45 km/h
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