📢 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

      The average speed of a car, a bus and a train together

      is 117 km/hr. andn ratio of their speed is 2 :4: 7. What is the average speed of a train and the bus together?
      A 135.5 km/hr Correct Answer Incorrect Answer
      B 148.5 km/hr Correct Answer Incorrect Answer
      C 142.5 km/hr Correct Answer Incorrect Answer
      D 151.5 km/hr Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      The ratio of speed of the car, bus and train = 2x: 4x: 7x So ATQ, (2x+ 4x + 7x)/3 = 117 2x + 4x + 7x = 117 `xx` 3 13x = 117 `xx` 3 x = 27 km Average speed of the train and the bus = (27`xx` 4+27`xx` 7)/2 = `(108+189)/2` = 148.5 km/hr

      Practice Next
      More Time and distance Questions

      Relevant for Exams:

      ask-question