A train travels at a certain average speed for a distance of 54 km and then travels a distance of 63 km at an average speed of 6km/hr more than the first speed. if it takes 3hr to complete the total journey, what is it's first speed?
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Answer:
36 km/h
Step-by-step explanation:
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Step-by-step explanation:
21 km per hr.firstly you will take out the speed For Speed is equals to 54 km then you will write second speed is equals to 60 degree then you will write distance per hour 63 kilometres kilometre per hour then in the next time you will write 60637 find that in kilometres by 6 kilometre how much distance does it covers so that it is 1.71 full Jony covered and 3 have that will not come then you will come the distance for 3 hours of 63 km 63 is given to US then gives as 21 kilometre per hour .
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