1.

There are two vertical posts, one on each side of a road. Just opposite to each other. One post is 108 metre high. From the top of this post, the angle of depression of the top and foot of the other post are $30^{0}$ and $60^{0}$ respectively. The height of the other post (in metre) is1). 362). 723). 1084). 110

Answer»

I have READ it SOMEWHERE 72 is CORRECT



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