Rohit while seeing a bird on tree top made 45 deg angle of elevation He walks 240ft towards the tree...........

Quantitative Aptitude ( CCS) Height and Distance

Rohit while seeing a bird on tree top made 45° angle of elevation. He walks 240ft. towards the tree to observe the bird closely, thus making 60° angle of elevation. How far was Rohit from the tree initially?

240√3 /√3 - 1 ft