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amit kumar

· started a discussion

· 1 Months ago

do u observe our raised issue i think u r not dont spoil our time team top rankers, if u r then address them (Question: 260001.0 )

worthless mock

Question:

A man is watching from at the top of the tower, a boat speeding away from the tower. The boat makes angle of depression of 45º with man’s eye when at a distance of 60 metres from the tower. After 5 seconds angle of depression becomes 30º. What is the approximate speed of boat assuming that it is running in still water?

Options:
A)

22 km/hr

B)

28 km/hr

C)

32 km/hr

D)

36 km/hr 

Solution:

Ans: (c)

  

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