A boat is moving away from an observation tower. It makes an angle of – McqOptions

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1.	A boat is moving away from an observation tower. It makes an angle of depression of 60 with an observer s eye when at a distance of 50 metre from the tower. After 8 seconds, the angle of depression becomes 30 . By assuming that it is running in still water, the approximate speed of the boat is :
A.	33 km/hr
B.	42 km/hr
C.	45 km/hr
D.	50 km/hr
Answer» D. 50 km/hr

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