MBA
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I kno its easy but still nt getting ans Two boxes,1 box containts 2 black ball and 2 white balls,2nd box contains 4 black and 12 white balls.If a box is choosen randomly and two balls are drawn at randomly from it,what is the probability of atleast one ball being black.? 1) 11/20 2) 43/120 3) 77/120 4) 9/20
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