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Questions  >>  CBSE XI  >>  Math  >>  Probability
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Q)

Three numbers are chosen from 1 to 20.Find the probability that they are not consecutive.

$\begin{array}{1 1}(A)\;\large\frac{186}{190}\\(B)\;\large\frac{187}{190}\\(C)\;\large\frac{188}{190}\\(D)\;\large\frac{18}{20C_3}\end{array} $

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