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QA - Placement Quizzes | Trigonometry & Height and Distances | Question 9
A man is watching from the top of a tower a boat speeding away from the tower. The boat makes an angle of depression of 45° with the man\'s eye when at a distance of 60 meters from the tower. After 5 seconds, the angle of depression becomes 30°. What is the approximate speed of the boat, assuming that it is running in still water?
(A)
32 kmph
(B)
36 kmph
(C)
40 kmph
(D)
44 kmph
Answer
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