A man's speed with the current of a river is 15 km/hr and the speed of the current is 2.5 km/hr. What is the man's speed against the current?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
2 (10 km/hr)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Man’s speed with current = 15 km/hr
Speed of current = 2.5 km/hr
Man’s rate in still water = (15 - 2.5) km/hr = 12.5 km/hr
Man’s rate against the current = (12.5 - 2.5) km/hr = 10 km/hr
∴ The speed of man's speed against the current is 10 km/hr
