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1. |
A soldier fired two bullets at an interval of 335 seconds moving at a uniform speed v1. A terrorist who was running ahead of the soldier in the same direction, hears the two shots at an interval of 330 seconds? If the speed of sound is 1188 km/h, then who is the faster and by how much? |
A. | Soldier, 22 km/h |
B. | Terrorist, 25 km/h |
C. | Soldier, 18 km/h |
D. | Terroist, 20 km/h |
Answer» D. Terroist, 20 km/h | |