JEE Previous Year Question
The urns A, B and C contain 4 red, 6 black; 4 red, 5 black and red, 5 black balls respectively. One of the urns is selected at random and a ball is drawn. If the ball drawn is red and the probability that it is drawn from urn C is 0.4 then the square of the length of the side of the largest equilateral triangle, inscribed in the parabola with one vertex at the vertex of the parabola is
Topic: JEE PYQ
Answer: 432. Full step-by-step solution below.
Correct answer: 432
Solution
(432)So tangent which touches in first quadrant at T is
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