Three bags identical in appearance contain respectively 1 white and 3 red balls ; 2 white and 1 red balls ; 4 white and 3 red balls. One bag is selected randomly and two balls are taken from it. Find the probability that (1) One ball is white and another ball is red (2) A white ball is selected from bag, I, II, III and second ball is red.
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- 3/4
- In second bag red ball are=2 it's probably is in second bag =1/3 , but in all bags probably=7/14
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