1.

Given point A (6,30) and point B(24,6) equation of line AB is 4x+3y=114 . " point P " (0, lambda) is a point on y-axis such that 0lt lambda lt 38 and pointQ(0,K) is a point on y-axis such that kgt 38. For all position of point P, angle APB is maximum when point P is

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(0,12)
(0,15)
(0,18)
(0,21)

ANSWER :C


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