After change contents, can former duplicate contents page re-indexed?

duplicate page, re-index

[johnlim]

HI,

Several of my pages are indexed first then found that these pages are dropped because these pages are accidently duplicate with pages in another site.

Now we have change about 50% of the contents in these pages.

Our questions,

1)WIll duplicates pages be re-indexed?
2) 50% contents change is enough for re-indexed?
3) How long need the punished page be re-indexed?

Thanks

[zgb999]

If the pages are on different sites and you changed 50 % of the content then this shouldn't be a duplicate content issue anymore.

Wait for a month to see whether you get back.

You might also check
[webmasterworld.com...]
to see if there are other issues than duplicate content leading to your loosing those pages.