📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • âś–

      Question

      A boat goes 60 km upstream in 4 hours and 50 km

      downstream in 2 hours, then the speed of the boat in still water is
      A 10 km/hr Correct Answer Incorrect Answer
      B 20 km/hr Correct Answer Incorrect Answer
      C 25 km/hr Correct Answer Incorrect Answer
      D 15 km/hr Correct Answer Incorrect Answer

      Solution

      Let the speed of boat = x and the speed of the stream = y 60/(x-y) = 4 ⇒ x-y = 15 50/(x+y) = 2 ⇒ x+y = 25 From above x = 20 km/hr

      Practice Next
      More Boats and streams Questions

      Relevant for Exams:

      ask-question