Two guns were fired from the same place at an interval of 13 minutes but a person in a train approaching the place hears the second shot 12 minutes 30 seconds after the first. Find the speed of train if sound travels at 330 metres per second.
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Q:
Two guns were fired from the same place at an interval of 13 minutes but a person in a train approaching the place hears the second shot 12 minutes 30 seconds after the first. Find the speed of train if sound travels at 330 metres per second.
- 1$$ {46{13\over 25}}km/hour$$false
- 2$$ {47{13\over 25}}km/hour$$true
- 348 km/hourfalse
- 449.2 km/hourfalse
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