possible value for a can be 1,2,48,49,50 and all (50-100]
no.

so prob will be 55/100
On Tue, Aug 23, 2011 at 10:41 PM, priya ramesh <
[email protected]> wrote:

> try substituting values for a.
> for a=1, 2 it's > 50
> for a=3, 4, 5, 6, 7... it's less than 50
> when a approaches 48, 49... it's > 50
> the max value of a that satisfies the condition is 47.
>
> p= total numbers between 3 and 47 (inclusive of 3 and 47)
>                         /
>      total numbers between 1 and 100
>
> = 45/98
>
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