UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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A sailor, standing on the deck of a ship, just sees the light beam from a lighthouse on the shore. If the height of the sailor's eye and of the light beam at the lighthouse, above the sea level, are 9 m and 25 m respectively, what is the distance between the sailor and the lighthouse ?

29.8 km

31.1 km

31.9 km

33.2 km

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