GATE | GATE-CS-2017 (Set 2) | Question 4
There are 3 red socks, 5 green socks and 3 blue socks. You choose 2 socks. The probability that they are of the same color is
Ways to collect both Red = 3C2 Ways to collect both Green = 3C2 Ways to collect both Blue = 5C2 Total Ways = 11C2 P(Socks of Same Colour) = (3C2 + 5C2+ 3C2 ) / 11C2 = 16/55
Therefore, Option D is correct
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