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Anonymous
Call your number "x". Write the following:x = 0.484848...
100x = 48.484848...
Subtract the first equation from the second equation. This will give you "x" as a fraction. See if you can simplify it.
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Loe Robinos ∙
The total no. of reflexive relations on a set A having n elements is 2^n(n-1).Thus, the required no. is 2^20 = 1 048 576