Two buses start from a bus terminal with a speed of 30 km/h at interval of 15 minutes. What is the speed of a man coming from the opposite direction towards the bus terminal if he meets the buses at interval of 10 minutes?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
ক (15 kmph)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Let the speed of the man be x km/h
Distance covered by the man in 10 min = Distance covered by the bus in 5 min
According to the question
⇒ x × 10/60 = 30 × 5/60
⇒ 10x = 150
⇒ x = 15 km/h
∴ Speed of the man is 15 km/h
