Neco Model Questions Vol1 2021 Mathematics Question 3
Practice objective / multiple choice question 3 from the 2021 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, and the number of green balls is five less than the number of red balls. The total number of balls in the bag is 20. Two balls are drawn at random without replacement. What is the probability that the two balls are of different colours? Express your answer as a fraction in lowest terms.
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About This Question
This is Neco Model Questions Vol1 2021 Mathematics Question 3. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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