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649

Q:

A speaks the truth 5 out of 7 times and B speaks truth 8 out of 9 times. What is the probability that they contradict each other in stating the same fact?

  • 1
    $${1\over 7}$$
  • 2
    $${1\over 9}$$
  • 3
    $${1\over 4}$$
  • 4
    $${1\over 3}$$
  • Show Answer
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Answer : 4. "$${1\over 3}$$"

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