Answer-Two trains, Train X and Train Y, are traveling towards each other on parallel tracks between Station...

Question

Accepted Answer

Solution From Statement 1 We know Train Xs speed 60 kmh, the distance 300 km, and that Train X left 30 minutes or 0.5 hours before Train Y. However, we dont know Train Ys speed, which is necessary to calculate when they will meet. Therefore, Statement 1 alone is not sufficient. From Statement 2 We only know Train Ys speed 80 kmh, but this alone does not give us enough information to determine when the two trains will meet. Statement 2 alone is not sufficient. Combining Statements 1 and 2 With Train Xs speed 60 kmh and Train Ys speed 80 kmh, and knowing Train X left 0.5 hours before Train Y, we can set up an equation based on their relative distance and speeds to determine when they will meet. Let the time taken after Train Ys departure for the two trains to meet be t. Train X would have covered 60  0.5  30 km by the time Train Y departs. Now, the remaining distance is 300 - 30  270 km, which they cover together at a relative speed of 60  80  140 kmh. Thus, t  270  140  1.93 hours. Therefore, both statements together are sufficient. Correct Answer c Both statements together are sufficient, but neither alone is sufficient.