To solve this problem, we need to find the ratio of distances from station A to point P and station B to point P, where the two trains meet.
First, let's find the speeds of both trains. The train from station A starts at 9 AM and reaches station B at 2 PM, taking a total of 5 hours for the journey. Similarly, the second train starts at 11 AM and reaches station A at 3 PM, also taking 4 hours for the journey. This indicates that the distance between the two stations is covered by the trains in their respective times.
Let the distance from station A to station B be \(D\).
The speed of the first train \(= \frac{D}{5}\)
The speed of the second train \(= \frac{D}{4}\)
Next, we find the time taken by both trains from their starting points to meet at point P. Let this time be \(t\) hours for the first train and \((t - 2)\) hours for the second train (since it started 2 hours later at 11 AM).
Using the speed, the distances traveled by the two trains at the time they meet at point P:
Distance traveled by the first train \(= \frac{D}{5} \cdot t\)
Distance traveled by the second train \(= \frac{D}{4} \cdot (t - 2)\)
Since these distances add up to the total distance between stations A and B:
\(\frac{D}{5} \cdot t + \frac{D}{4} \cdot (t - 2) = D\)
To simplify, divide both sides by \(D\):
\(\frac{t}{5} + \frac{(t - 2)}{4} = 1\)
Clearing the fractions by multiplying the equation by 20:
\(4t + 5(t - 2) = 20\)
\(4t + 5t - 10 = 20\)
\(9t = 30\)
\(t = \frac{30}{9} = \frac{10}{3}\)
Thus, the first train takes \(\frac{10}{3}\) hours to reach point P. The distance it covers is:
\(\frac{D}{5} \times \frac{10}{3} = \frac{2D}{3}\)
Similarly, the second train takes:
\(\frac{10}{3} - 2 = \frac{10}{3} - \frac{6}{3} = \frac{4}{3}\) hours
The distance it covers in this time is:
\(\frac{D}{4} \times \frac{4}{3} = \frac{D}{3}\)
Thus, the ratio of the distances from station A to P and from station B to P is:
\(\frac{\frac{2D}{3}}{\frac{D}{3}} = \frac{2}{1}\)
Therefore, the correct answer is 2:1.
Eight railway stations A, B, C, D, E, F, G and H are connected either by two-way passages or one-way passages. One-way passages are from C to A, E to G, B to F, D to H, G to C, E to C and H to G. Two-way passages are between A and E, G and B, F and D, and E and D.
If the route between G and C is closed, which one of the following stations need not be passed through while travelling from H to C?
A daily train is to be introduced between station A and station B starting from each end at 6 AM and the journey is to be completed in 42 hours. What is the number of trains needed in order to maintain the Shuttle Service?
A train with a uniform speed passes a 122 meters long platform in 17 seconds and a 210 meters long bridge in 25 seconds. The speed of the train is:
How long does a train 153 meters long running at the rate of 90 kmph take to cross a bridge 622 meters in length?
A train passes a 360 metre long platform in 40 seconds and a man standing on the platform in 16 seconds. The speed of the train is: