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Q)

An integer between 10 and 99 is chosen at random. What is the probability that all the digits are even ?

$\begin{array}{1 1} (a)\; \frac{2}{9} \\ (b)\; \frac{20}{99} \\ (c)\; \frac{20}{100} \\ (d)\; \frac{21}{99}\end{array}$

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