Question
Axe speaks truth only when Wye does not speak truth, then what is the probability that Zed does not speak truth on a question?
There are three people – Axe, Wye and Zed. Probability that Axe speaks the truth is 7/20, probability that Wye speaks the truth is 3/5 and probability that Zed speaks truth is 5/6. For a particular question asked, at most 2 people speak truth. All people answer to a particular question asked.
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