A man travels 430 kilometres in, partly by rail and partly by steamer. He spends 10 hours more time on steamer. If the velocity of the steamer is 25 km/hr and the velocity of rail is 65 km/hr, how much distance does he cover by steamer?
An oligarchy is the form of government which is rule by few form and that few people may be military control, or by wealthy society or through ethnic identities.