A train begins a journey of 200km at 7.45 a.m. if its average speed is 60km/h, at what time will it complete its journey?
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Answer:
train begin jaouney of = 200 km.
at time = 7:45
average speed of tarin is = 60km/hrs
The tain's average speed in min = 60/60 [because 1 hrs = 60 min]
= 1km/min
= 200km in 200 minute
time in hrs
= 3hrs 20min
the train complete it journey in 3hrs 20min
at this = 7:45 + 3hrs 20min
= 11:05 am.....
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