๐Ÿ“ข Too many exams? Donโ€™t know which one suits you best? Book Your Free Expert ๐Ÿ‘‰ call Now!

  • google app store apple app store
  • โœ–

      Question

      A man can row 9 km/hr in still water. If the speed of

      the current is 3 km/hr, it takes 4 hours more in upstream than in the downstream for the same distance. The distance is
      A 48 km Correct Answer Incorrect Answer
      B 80 km Correct Answer Incorrect Answer
      C 120 km Correct Answer Incorrect Answer
      D 45 km Correct Answer Incorrect Answer

      Solution

      Let the required distance be x km. Therefore, x/(9 โ€“ 3) โ€“ x/(9 + 3) = 4 โ‡’ x/6 โ€“ x/12 = 4 โ‡’ (2x โ€“ x)/12 = 4 โ‡’ x = 4 x 12 = 48 km

      Practice Next

      Relevant for Exams:

      ask-question