Neco 2018 Mathematics Question 16
Practice objective / multiple choice question 16 from the 2018 Neco Mathematics examination.
A factory uses two machines, A and B, to produce items. Machine A produces 60% of the total output and has a defect rate of 2%; machine B produces the remaining 40% and has a defect rate of 5%. An item is selected at random and is found to be defective. A second item is then selected from the same machine that produced the first item (the machine is unknown). What is the probability that the second item is also defective? Express your answer as a fraction in lowest terms.
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About This Question
This is Neco 2018 Mathematics Question 16. It is one of the objective questions from the 2018 Neco Mathematics examination.
Difficulty level: Hard .
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