1.

45 15ag contains 7 white and 9 black balls. Two balls are drawnm. What is the probability that one of therin succession at randois white and the other black?

Answer» <p>A bag containe total number of 16 ballssuppose one ball is pickedthen probability of that ball to be a black will be9/16 and again one ball is drawnthen 7/15total probability will be9/16*7/1521/80= 0.2625</p><p>case 2 nd</p><p>Case 2 : 1st ball - white and 2nd ball - Black ;</p><p>Probability= 7/16*9/15 = 0.2625total probability = 0.525</p>


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