Neco 2017 Mathematics Question 4
Practice objective / multiple choice question 4 from the 2017 Neco Mathematics examination.
A box contains white, black and red balls. The probability of drawing a white ball is \(\frac12\). The probability of drawing a red ball is one‑third of the probability of drawing a black ball. Two balls are drawn successively without replacement and both are observed not to be white. What is the probability that both drawn balls are red?
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About This Question
This is Neco 2017 Mathematics Question 4. It is one of the objective questions from the 2017 Neco Mathematics examination.
Difficulty level: Hard .
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