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A person standing on the bank of a river...

A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is `60^@` and where he retires 40 meters away from the tree the angle of elevation becomes `30^@`. The breadth of the river is

A

40 m

B

30 m

C

20 m

D

60 m

Text Solution

Verified by Experts

The correct Answer is:
C
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