Advertisements
Advertisements
Question
A train 600 meters long is running at a speed of 90 kms/hr. If it crosses a tunnel in one minute, then the length of the tunnel is:
Options
500 meters
550 meters
600 meters
900 meters
Advertisements
Solution
900 meters
Explanation:
Let the length of the tunnel is `l` m
ATQ,
`(90xx5)/18xx60=600+l`
`25xx60=600+l`
`l =1500 - 600 = 900` m
APPEARS IN
RELATED QUESTIONS
A watch which gains uniformly is 2 minutes slow at noon on Monday and is 4 minutes 48 seconds fast at 2 p.m on the following Monday. When was it correct?
Choose the most appropriate option:
A train which is moving at an average speed of 40 kmph, reaches its destination on time. When its average speed reduces to 35 kmph, then it reaches its destination 15 minutes late. The distance travelled by train is:
A man covers a certain distance between his house and office on a Scooter. Having an average speed of 30 km/hr, he reaches the office late by 10 minutes. However, with a speed of 40 km/hr, he reaches his office 5 minutes earlier. The distance between his house and office is
Azhar can row 9.333 kmph in still waters and finds that it takes him thrice as much time to row up than as to row down the same distance in the river. The speed of the current of the river is
A train 100 meters long-running at 54 km/hr takes 20 seconds to pass a bridge. The length of the bridge is
Pipe A can fill a tank in 10 hr and Pipe B can fill the same tank in 12 hr. Both the pipes are opened to fill the tank and after 3 hr Pipe A is closed. Pipe B will fill the remaining part of the tank in:
In a race of 200 m run, A beats S by 20 m and N by 40 m. If S and N are running a race of 100 m with exactly same speed as before, then by how many metres will S beat N?
A person crosses a 600m long street in 5 min. What is his speed in km per hour?
Two trains of equal length are running on parallel lines in the same direction at 46 km/h and 36 km/h. The faster train passes the slower train in 36 s. The length of each train is
A 300 metre long train moving with an average speed of 126 km/hr. crosses a platform in 24 seconds. A man crosses the same platform in 5 minutes. What is the speed of man in metre/second?
