Question
A bag contains 8 green balls, 5 yellow balls and 3 blue
balls. Two balls are drawn simultaneously. Find the probability that both the balls are of same colour.Solution
Total number of balls in the bag = 8 + 5 + 3 = 16 Total possible outcomes = 16C2 = 120 Number of favourable outcomes = 8C2 + 5C2 + 3C2 = 28 + 10 + 3 = 41 Required probability = 41/120
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