Practice MCQ Questions and Answer on Speed Time and Distance

401.

Two trains 105 meters and 90 meters long, run at the speeds of 45 kmph and 72 kmph respectively, in opposite directions on parallel tracks. The time which they take to cross each other, is:

  • (A) 8 seconds
  • (B) 6 seconds
  • (C) 7 seconds
  • (D) 5 seconds

402.

An ant moved for several seconds and covered 3 mm in the first second and 4 mm more in each successive second than its predecessor. If the ant had covered 1 mm in the first second and 8 mm more in each successive second, then the difference between the path it would cover during the same time and actual path would be more than 6 mm but less than 30 mm. find the time for which the ant moved (in seconds).

  • (A) 5 s
  • (B) 4 s
  • (C) 6 s
  • (D) 2 s

403.

Two trains of equal length, running in opposite directions, pass a pole in 18 and 12 seconds. The trains will cross each other in:

  • (A) 14.4 seconds
  • (B) 15.5 seconds
  • (C) 18.8 seconds
  • (D) 20.2 seconds

404.

Places A and B are 396 km apart. Train X leaves from A for B and train Y leaves from B for A at the same time on the same day on parallel tracks. Both trains meet after $$5\frac{1}{2}$$ hours. The speed of Y is 10 km/h more than that of X. What is the speed (in km/h) of Y?

  • (A) 41
  • (B) 54
  • (C) 31
  • (D) 56

405.

A train is 250 m long. If the train takes 50 second to cross a tree by the railway line, then the speed of the train on Km /hr is :

  • (A) 9 km/hr
  • (B) 5 km/hr
  • (C) 18 km/hr
  • (D) 10 km/hr

406.

Two planes move along a circle of circumference 1.2 km with constant speeds. When they move in different directions, they meet every 15 seconds and when they move in the same direction, one plane overtakes the other every 60 seconds. Find the speed of the slower plane.

  • (A) 0.04 km/s
  • (B) 0.03 km/s
  • (C) 0.05 km/s
  • (D) 0.02 km/s

407.

A plane left half an hour later than the scheduled time and in order to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 percent over its usual speed. Find its increased speed.

  • (A) 250 kmph
  • (B) 500 kmph
  • (C) 750 kmph
  • (D) 1000 kmph

408.

A truck covers a distance of 550 metres in 1 minute whereas a bus covers a distance of 33 kms in 45 minutes. The ratio of their speed is :

  • (A) 3 : 4
  • (B) 4 : 3
  • (C) 3 : 5
  • (D) 50 : 3

409.

If a train runs at 40 kmph, it reaches its destination late by 11 minutes but if it runs at 50 kmph, it is late by 5 min only. The correct time for the train to complete its journey is :

  • (A) 13 min
  • (B) 15 min
  • (C) 19 min
  • (D) 21 min

410.

A motor car does a journey in 17.5 hours, covering the first half at 30 km/h and the second half at 40 km/h. Find the distance of the journey?

  • (A) 684 km
  • (B) 600 km
  • (C) 624 km
  • (D) 584 km