Q. On a horizontal ground, the base of a straight ladder is 6 m away from the base of a vertical pole. The ladder makes an angle of 45o to the horizontal. If the ladder is resting at a point located at one-fifth of the height of the pole from the bottom, the height of the pole is meters.
(A) 15
(B) 25
(C) 30
(D) 35
Ans: 30
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