Two guns were fired from the same place at interval of 15 minutes. Laxman travelling in car that was approaching the place hears the 2 nd 13 minutes after the 1 st. Find the speed of the car , if the sound travels at 80 m/s.

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Two guns were fired from the same place at interval of 15 minutes. Laxman travelling in car that was approaching the place hears the 2 nd 13 minutes after the 1 st. Find the speed of the car , if the sound travels at 80 m/s.






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