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UPSC CDS Math Height and Distances Questions

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Question : 8

Total: 25

A man, standing at a point X on the bank XY of a river that cannot be crossed, observes a tower to be N α° E on the opposite parallel bank. He then walks 200 m along the bank to the point Y towards East, and finds the tower to be N β° W. From these observations, the breadth of the river will be (Given that tan a° = 2 and tan β° = 0.5)

60 m
70 m
80 m
90 m

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