Standing anywhere on a boat by the bank of a river, a man observed a tree exactly straight to him on the other bank in such a way that the angle of elevation from the boat to the top of the tree of 150 metres length is 30°.The man started for the tree. But he reached 10 metres away from the tree due to current.Find the distance from the sstarting point to the destination he reached on the other side on the river.
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