Question

A bag contains 5 red flowers, 7 yellow flowers and 8 green flowers. 3 flowers are drawn randomly. What is the probability that the flowers drawn contain flowers of different colors? 

A 17/57 Correct Answer Incorrect Answer
B 19/57 Correct Answer Incorrect Answer
C 14/57 Correct Answer Incorrect Answer
D 18/57 Correct Answer Incorrect Answer

Solution

Required probability = (5C1 x 7 C1 x 8C1)/(20C3) = (5 x 7 x 8 x 6 )/(20 x 19 x 18 )  = 14/57 

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