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Two guns are fired from the same place at an interval of 6 minutes. A person approaching the place observes that 5 minutes 52 seconds have elapsed between the hearing of the sound of the two guns. If the velocity of the sound is 330m/s, the man was approaching that place at what speed (in km/hr)?

A

24

B

27

C

30

D

36

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The correct Answer is:
B
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