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Write the following sets in roster form : $C=\{x : x \text{ is a two digit natural number such that the sum of its digits is 8 }\}$

$\begin{array}{1 1}(A)\;C=\{17,26,35,44,53,62,71,80\}\\(B)\;C=\{44,53,65,72,80\}\\(C)\;C=\{18,26,36,44,54,62,72,80\}\\(D)\;\text{None of these}\end{array} $

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Hence (A) is the correct answer.
answered May 23, 2014 by sreemathi.v
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