Imagine that you are travelling in a passenger train, with 22 coaches, depicted by curved black lines in the options. You are sitting on a window seat in the 19th coach (seat position marked as P). At a given instant of time when the train is heading northwards, select the option which will allow you to see the engine at the front clearly through the window of your seat.
To determine the option that will allow you to see the engine of the train clearly from your seat in the 19th coach, let's consider the orientation and formation of the train's coaches. The train has 22 coaches in total. You are seated in the 19th coach (marked as P) on the right side window when the train heads north. Given that you are near the end of the train, to see the engine clearly, the following conditions must be met:
The train should be curved to the left. This means the front of the train (or the engine) will come into your line of sight as you look forward and to the left, out of your window.
The curve needs to be significant enough for the line of sight from the 19th coach to reach the engine at the front.
Among the given options, the third train pattern () illustrates a substantial left curve for a northward-moving train. This pattern will enable you to view the engine from the right window seat in the 19th coach effectively. Therefore, the correct option is the third train pattern, which shows the left curve suitable for you to see the engine clearly.
