Box 1 contains one gold marble and one black marble. Box 2 contains one gold marble and two black marbles. Box 3 contains one gold marble and three black marbles. Whenever a marble is chosen randomly from one of the boxes, each marble in that box is equally likely to be chosen. A marble is randomly chosen from Box 1 and placed in Box 2. Then a marble is randomly chosen from Box 2 and placed in Box 3. Finally, a marble is randomly chosen from Box 3. What is the probability that the marble chosen from Box 3 is gold?
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Total no. of marbles =3+6=9
p(getting a gold marble )= favourable outcomes =3.
Therefore, probability =3/9=1/3
the ans is 1/3
p(getting a gold marble )= favourable outcomes =3.
Therefore, probability =3/9=1/3
the ans is 1/3
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