📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      A boat can cover 143 km in downstream in 11 hours and

      120 km in upstream in 12 hours. Find the speed of boat in still water
      A 10.5 km/hr Correct Answer Incorrect Answer
      B 13.5 km/hr Correct Answer Incorrect Answer
      C 11.5 km/hr Correct Answer Incorrect Answer
      D 15.5 km/hr Correct Answer Incorrect Answer

      Solution

      Downstream speed of the boat = 143/11 = 13 km/hr Upstream speed of the boat = 120/12 = 10 km/hr Speed of boat in still water = (13 + 10)/2 = 11.5 km/hr

      Practice Next

      Relevant for Exams:

      ask-question