For a man, the angle of elevation of the highest point of a tower situated west to him is \( 60^....

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For a man, the angle of elevation of the highest point of a tower situated west to him is \( 60^{\circ} \). On
\( \mathrm{P} \)
walking 240 metres to north, the angle of elevation
W
reduces to \( 30^{\circ} \). The height of the tower is
(1) \( 50 \sqrt{3} \mathrm{~m} \)
(2) \( 30 \sqrt{6} \mathrm{~m} \)
(3) \( 60 \sqrt{6} \mathrm{~m} \)
(4) \( 60 \mathrm{~m} \)



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