A) \[\frac{7}{9}\]
B) \[\frac{7}{10}\]
C) \[\frac{2}{5}\]
D) None of these
Correct Answer: A
Solution :
Required pair \[=(12,\,88),(13,\,87).........(88,\,12)\] Total number of such pairs are 77 and total number of pairs (for which sum is 100) = 99 \ Required probability \[=\frac{7}{9}\]
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