Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time (in seconds) will they cross each other travelling in opposite direction?
10
12
15
20
Correct Answer :
B. 12
Related Questions
A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:
50 m
150 m
200 m
Data inadequate
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:
130
360
500
540
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 which they take to cross each other, is
9.8 seconds
10.8 seconds
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A jogger running at 9 kmph alongside a railway track is 240 metres ahead of the engine of a 120 metre long train running at 45 kmph in the same direction. In how much time will the train pass the jogger ?
30 seconds
32 seconds
34 seconds
36 seconds
Two trains are running in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then the speed of each train (in km/hr) is:
10
18
36
72
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?
230 m
240 m
260 m
270 m
A train is 100 meter long and is running at the speed of 30 km per hour. Find the time it will take to pass a man standing at a crossing.
10 seconds
12 seconds
14 seconds
16 seconds
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-
400 m
450 m
560 m
600 m
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?
15 seconds
12.1 seconds
10 seconds
8.1 seconds
A train 100 m long is running at the speed of 30 km / hr. Find the time taken by it to pass a man standing near the railway line.
12 sec
20 sec
15 sec
17 sec
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?
25
30
40
45
How many seconds will a 500 meter 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
25 Seconds
28 Seconds
30 Seconds
35 Seconds
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. Find the length of the train.
150 meter
145 meter
140 meter
135 meter
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-
30 km/hr
45 km/hr
60 km/hr
75 km/hr
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is
200 meter
225 meter
245 meter
250 meter
Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is ?
1:3
3:2
3:5
3:7
Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is ?
40 meter
45 meter
50 meter
55 meter
In what time will a train 100 meters long cross an electric pole, if its speed is 144 km/hr
5 seconds
4.5 seconds
3 seconds
2.5 seconds
Length of a train is 130 meters and speed of train is 45 km/hour. This train can pass a bridge in 30 seconds, then find the length of the bridge.
230 meters
235 meters
240 meters
245 meters
Speed of a goods train is 72 km/hr. This train crosses a 250 meter platform in 26 seconds. Then find the length of goods train.
250 meters
260 meters
270 meters
280 meters
A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
320 m
350 m
650 m
Data inadequate
A train speeds past a pole in 15 seconds and a platform 100 meter long in 25 seconds. What is length of the train ?
140 meter
145 meter
150 meter
155 meter
Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is
36
45
48
49
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.
12 sec
24 sec
48 sec
60 sec
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?
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:
2:3
4:3
6:7
9:16
A train is 360 meter long is running at a speed of 45 km/hour. In what time will it pass a bridge of 140 meter length.
20 seconds
30 seconds
40 seconds
50 seconds
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
120 metres
180 metres
324 metres
150 metres
Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is
1 : 3
3 : 2
3 : 4
None of these
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. Find the length of train ?
45 meter
50 meter
55 meter
60 meter