not only but also versus and

[Naveenk]

Hi,
I encountered statement as below in gmat.. Which one is correct. Any rule when to use "not only but also" or "and" .
He is both smart and intelligent.
He is not only smart but also intelligent.

Thxs a lot

[Kitosdad]

Both are OK. Don't think there is any rule concerning when to use the longer one.

The first would be the most commonly used, I'd think.
_________________
Keep it simple ... Keep it interesting.

[Janelt]

"not only but also" makes the sentence sound more interesting. It's not only for the previous purpose but also to emphasize the aspects listed in your sentences.