[40 sec] A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

Easy Tutorial

For Competitive Exams

Aptitude

TNPSC G4

10th CBSE Maths

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

40 sec

42 sec

45 sec

48 sec

Explanation:

Formula for converting from km/hr to m/s: $x$ km/hr =$ \left(x \times\dfrac{5}{18} \right) $m/s.

Therefore, Speed =$ \left(45 \times\dfrac{5}{18} \right) $m/sec=$ \dfrac{25}{2} $m/sec.

Total distance to be covered = (360 + 140) m = 500 m.

$\therefore$ Required time =$ \left(\dfrac{500 \times 2}{25} \right) $sec= 40 sec.

Additional Questions

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:	Answer
A train overtakes two persons who are walking in the same direction in which the train is going at the rate of 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is:	Answer
Two goods train each 500 m long are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.	Answer
A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is:	Answer
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?	Answer
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?	Answer
Two trains each 100 m long moving in opposite directions cross each other in 8 seconds. If one is moving twice as fast the other then the speed of the faster train is:	Answer
A train overtakes two persons walking along a railway track. The first one walks at 4.5 km/hr. The other one walks at 5.4 km/hr. The train needs 8.4 and 8.5 seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train?	Answer
A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is	Answer
A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute then the length of the tunnel (in meters) is	Answer

Share with Friends