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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 4 · Set 1 · Q18
The probability that A speaks the truth is 4/5 and that of B speaking the truth is 3/4. The probability that they contradict each other in stating…
The probability that A speaks the truth is $\displaystyle \frac{4}{5}$ and that of B speaking the truth is $\displaystyle \frac{3}{4}$. The probability that they contradict each other in stating the same fact is :
Official answer
(A)
$\displaystyle \frac{7}{20}$
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