Question: An exam contains two multiple choice questions. The first question has four possible answers, while the second one has five. If a student taking the

An exam contains two multiple choice questions. The first question has four possible answers, while the second one has five. If a student taking the exam answers both questions completely at random, the probability that he/she gives at least one wrong answer is

(a) 12∕20

(b) 19∕20

(c) 1∕15

(d) 1∕20

(e) 14∕15

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