Neco 2017 Mathematics Question 16
Practice objective / multiple choice question 16 from the 2017 Neco Mathematics examination.
An urn contains red, blue and green balls. The total number of balls is 30. The probability that a randomly selected ball is red is \(\frac{1}{3}\). If two balls are drawn successively without replacement, the probability that both are blue is \(\frac{1}{29}\). How many green balls are in the urn?
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About This Question
This is Neco 2017 Mathematics Question 16. It is one of the objective questions from the 2017 Neco Mathematics examination.
Difficulty level: Hard .
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