Question

a train covers the first 160 kilometre of a journey at 40 km per hour the next 180 kilometre at 45 kilometre per hour and the last 200 km at 50 km per hour find the the total time it takes to complete the journey and the average speed of train during the whole journey ​

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

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Answer 2

Answer:

Total time taken = 160/40+ 18/45 + 200/50 = 4+4+4 = 12hrs

speed average = toatal distance / total time taken

=(160+180+200)/12

=540/12=45km/hr