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There are \(3\) geese sitting equally spaced along the perimeter circle with a radius \(2\) meters in the water. The sound waves from their honks travel uniformly radially outward. Geese A honk is \(85\) decibels from 5 meters away. Geese B honk is \(87\) decibels from 5 meters away. Geese C honk is \(89\) decibels from 5 meters away. The geese honk one after another. A bird 18 meters above the centre of the the circle hears the honks.

 

From the bird's point of view, what is the sum of the decibels of the honks?

 Sep 20, 2022

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