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1. |
A man standing on the bank of river observes that the angle subtended by a tree on the opposite bank is 60 . When he retires 36 m from the bank, he finds that the angle is 30 . The breadth of the river is |
A. | 15 metre |
B. | 18 metre |
C. | 16 metre |
D. | 11 metre |
Answer» C. 16 metre | |