#speeddistancetime#maths#averagespeed #rsagarwalmaths#class7th #youtubeshorts

#speeddistancetime#maths#averagespeed #rsagarwalmaths#class7th #youtubeshorts

A train covers 108 km in first two hours, 36 km in next half an hour and 90 km in next two hours.Find the average speed of the train during the whole journey.


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