There are 4 blue 8 yellow balls. Two balls are selected one by one without replacement. Find the pro

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09 Jul 2019 Probability

There are 4 blue 8 yellow balls. Two balls are selected one by one without replacement. Find the probability that first is yellow and second is blue.

OPtion

1) 2/9
2) 32/144
3) 1/4
4) 1/6
5) 8/33
6) 12/43
7) 5/36
8) 4/35
9) 8/71
10) None of these

Solution

Probability = (8/12)*(4/11) = (2/3)*(4/11) = 8/33

Correct Option: 5 Best Solution (4)