Question: Hi, could you help me with this question? - I only need the final answer (no steps needed): Three bags contain 3 red, 7 black;

Hi, could you help me with this question? - I only need the final answer (no steps needed):

Three bags contain 3 red, 7 black; 8 red, 2 black, and 4 red & 6 black balls respectively.

1 of the bags is selected at random and a ball is drawn from it.

If the ball drawn is red, find the probability that it is drawn from the third bag.

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