A class of 18 pupils consist of 11 girls, 4 of whom are left-handed, and 7 boys, only one of whom is left-handed. The two pupils are to be chosen at random from the class to act as monitors. Calculate the probabilities that the chosen pupils will consist of a. One girl and One boy b. One girl who is left-handed and one boy who is left-handed c. Two left-handed pupils

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