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A fire in a building B is reported on te...

A fire in a building B is reported on telephone to two fire stations P and Q, 20 km apart from each other on a straight road. P observes that the fire is at an angle of `60^(@)` to the road and Q observed that it is at an angle of `45^(@)` to the road. Which station should it send its team and how much will that team have to travel?

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The correct Answer is:
12.68 km
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