Neco Model Questions Vol1 2018 Mathematics Question 20
Practice objective / multiple choice question 20 from the 2018 Neco Model Questions Vol1 Mathematics examination.
A bag contains red, blue and green balls. The number of red balls is twice the number of blue balls. The number of green balls is five less than the total number of red and blue balls combined. A ball is drawn at random, its colour noted and it is not replaced. A second ball is then drawn. What is the probability that the two balls are of different colours? Express your answer as a reduced fraction.
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About This Question
This is Neco Model Questions Vol1 2018 Mathematics Question 20. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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