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Home Aptitude Time and Distance Comments

  • Question
  • A train cover a distance in 50 minutes, if it runs at a speed of 48 km per hour on an average. The speed at which the train must run to reduce the time of journey to 40 minutes?


  • Options
  • A. 50 km/hr.
  • B. 55 km/hr.
  • C. 60 km/hr.
  • D. 70 km/hr.

  • Correct Answer
  • 60 km/hr. 

    Explanation

    Total Distance = 48 x (50/60) km.
    = 40 km

    Required speed = [40 / (40/60)] km.
    = (40 x 60 )/ 40 km/hr.
    = 60 km/hr.


  • Time and Distance problems


    Search Results


    • 1. 
      Laxman has to cover a distance of 6 km in 45 minutes . If he cover one half of the distance in 2/3 rd time . what should be his speed to cover the remaining distance in the remaining time?

    • Options
    • A. 12 km/hr.
    • B. 16 km/hr.
    • C. 3 km/hr.
    • D. 8 km/hr.
    • Discuss
    • 2. 
      A plane flies along the four sides of a square field at a speed of 200, 400, 600 and 800 km/hr. Then find the average speed of plane around the square field.

    • Options
    • A. 394
    • B. 400
    • C. 414
    • D. 384
    • Discuss
    • 3. 
      In how many minutes will Rohit cover a distance of 800 m, if he runs at speed of 10 km/hr?

    • Options
    • A. 5 min 12 sec
    • B. 4 min 40 sec
    • C. 5 min
    • D. 4 min 48 sec
    • Discuss
    • 4. 
      Arjun runs a distance of 1500 m in 5 minutes. What is his speed in Km/hr?

    • Options
    • A. 16 km/hr
    • B. 18 km/hr
    • C. 15 km/hr
    • D. 20 km/hr
    • Discuss
    • 5. 
      A and B are 20 km apart. A can walk at an average speed of 4 km/hr and B at 6 km/h. If they start walking towards each other at 7:000 am, when they will meet?

    • Options
    • A. 8:00 am
    • B. 8:30 am
    • C. 9:00 am
    • D. 10:00 am
    • Discuss
    • 6. 
      Excluding stoppages, the speed of a bus is 54 km/hr. and including stoppages it is 45 km/hr. for how many minutes does the bus stop per hour?

    • Options
    • A. 9
    • B. 10
    • C. 12
    • D. 20
    • Discuss
    • 7. 
      Two men start together to walk to a certain destination, one at 3.75 km an hour and another at 3 km an hour. The former arrives half an hour before the latter, the distance is?

    • Options
    • A. 9.5 km.
    • B. 8 km.
    • C. 7.5 km.
    • D. 6 km.
    • Discuss
    • 8. 
      A car covers four successive three km stretches at speed of 10 km/hr, 20 km/hr, 30 km/hr and 60 km/hr. respectively. Its average speed over this distance is?

    • Options
    • A. 10 km/hr.
    • B. 20 km/hr .
    • C. 30 km/hr.
    • D. 25 km/hr .
    • Discuss
    • 9. 
      A car complete a certain journey in 8 hour. It cover half the distance at 40 km/hr and the rest at 60 km/hr, The length of a journey is?

    • Options
    • A. 350 km.
    • B. 420 km.
    • C. 384 km.
    • D. 400 km.
    • Discuss
    • 10. 
      Rahim covers a certain distance in 14 hrs 40 min. He covers one half of the distance by train at 60 km/hr. and rest half by road at 50 km/hr. The distance travelled by him is?

    • Options
    • A. 960 km.
    • B. 720 km.
    • C. 1000 km.
    • D. 800 km.
    • Discuss


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