defence exam Agniveer Navy MR Mock Test Series 2025 Quantitative Aptitude Speed Time and Distance Relative Speed
A rocket is launched at intervals of 11.5 seconds, moving in the same direction as a train traveling at an unknown speed. The speed of sound is 330 m/s. If a person seated inside the train hears the sound of the rocket after 11 seconds, determine the speed of the train.
1
11 m/s
2
15 m/s
3
12.5 m/s
4
20 m/s