Arithmetic Ability
Permutations and Combinations

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Q.

In a bag, there are 8 red, 7 blue and 6 green flowers. One of the flower is picked up randomly. What is the probability that it is neither red nor green ? A) 1/3 B)8/21 C)6/21 D)20/21

View Answer

Correct choice: A

Explanation:

Total number of flowers = (8+7+6) = 21. Let E = event that the flower drawn is neither red nor green. = event taht the flower drawn is blue. --> n(E)= 7 --> P(E)= 7/21=1/3
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