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  • Question

  • The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for 2 h on reaching the destination. The total time taken to complete to and fro journey is 32 h, covering a distance of 1600 km. Find the speed of the train in the onward journey?


  • Options
  • A. 56.25 km/h
  • B. 60 km/h
  • C. 66.50 km/h
  • D. 67 km/h

  • Correct Answer
  • 60 km/h 

    Explanation

    Let speed in the return journey = V
    ? Speed in onward journey = (125/100) x V = 5V/4 km/h
    Average speed = (2x 5V/4 x V) / (5V/4 + V) = 10V/9 km/h
    ? 1600 x (9/10V) = 30 [? halts for 2 h ]
    ? V = 1600 x 9/30 x 10 = 48 km/h
    ? Speed in onward journey = 5V/4 = 5/4 x 48 = 60 km/h

    • More questions

    • 1. 
      A car driver covers a distance between two cities at a speed of 60 km/h and on the return his speed is 40 km/h. He goes again from the 1st to the 2nd city at twice the original speed and returns at half the original return speed. Find his average speed for entire journey?

    • Options
    • A. 55 km/h
    • B. 50 km/h
    • C. 48 km/h
    • D. 40 km/h
      • Discuss
    • 2. A train of length 110 meter is running at a speed of 60 kmph. In what time, it will pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

    • Options
    • A. 10
    • B. 8
    • C. 6
    • D. 4
      • Discuss
    • 3. The least number to be added to 13851 to get a number which is divisible by 87 is

    • Options
    • A. 18
    • B. 43
    • C. 54
    • D. 69
      • Discuss
    • 4. A non-zero number is greater than 7 times its reciprocal by 9.3. What is the number?

    • Options
    • A. 10
    • B. 20
    • C. 5
    • D. 14
      • Discuss
    • 5. What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?

    • Options
    • A. 260
    • B. 300
    • C. 280
    • D. 220
      • Discuss
    • 6. The average of four consecutive odd numbers is 40. What is the largest number?

    • Options
    • A. 42
    • B. 45
    • C. 43
    • D. 44
      • Discuss
    • 7. Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

    • Options
    • A. 20
    • B. 50
    • C. 25
    • D. 30
      • Discuss
    • 8. The sum of a fraction and 7 times its reciprocal is 11/2. What is the fraction?

    • Options
    • A. 7/2
    • B. 2/7
    • C. 3/4
    • D. 4/3
      • Discuss
    • 9. M is the largest three digit number which when divided by 6 and 5 leaves remainder 5 and 3 respectively. What will be the remainder when M is divided by 11?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 10. Two numbers are 40% and 80% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

    • Options
    • A. 100
    • B. 33.3
    • C. 66.6
    • D. 200
      • Discuss

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