Quiz Discussion

A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

• 1]

  120 m

• 2]

  240 m

• 3]

  300 m

• 4]

  None Of These

Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is:

• 1]

  2 : 3

• 2]

  4 : 3

• 3]

   6 : 7

• 4]

  9 : 16

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is:

• 1]

  9

• 2]

  9.6

• 3]

  10

• 4]

  10.8

A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?

• 1]

  69.5 km/hr

• 2]

  70 km/hr

• 3]

  79 km/hr

• 4]

  79.2 km/hr

In what time will a train 100 meter long cross an electric pole, if its speed be 144 km/hour?

• 1]

  2.5 seconds

• 2]

  5 seconds

• 3]

  12.5 seconds

• 4]

  3 seconds

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

• 1]

  120 metres

• 2]

  180 metres

• 3]

  324 metres

• 4]

  150 metres

How long does a train 110 meters long running at the speed of 72 km/hour take to cross a bridge 132 meters in length ?

• 1]

  15 seconds

• 2]

  12.1 seconds

• 3]

  10 seconds

• 4]

  8.1 seconds

A train travelling at a speed of 75 mph enters a tunnel 3 1/2​miles long. The train is 1/4​mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

• 1]

  2 min

• 2]

  3 min

• 3]

  4 min

• 4]

  5 min

Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train?

• 1]

  23 m

• 2]

  23 2/9 m

• 3]

  27 7/9 m

• 4]

  29 m

How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

• 1]

  25

• 2]

  30

• 3]

  40

• 4]

  45