6/A 1.5 m tall boy is standing at some distance from a 30 m tall build – InterviewSolution

1.	6/A 1.5 m tall boy is standing at some distance from a 30 m tall building. The angle。elevation from his eyes to the top of the building increases from 30° to 60° as he walktowards the building. Find the distance he walked towards the building.
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