Sometimes I see people say " kind of girl " and sometimes " kind of girls "
Ex. I hate this kind of girl.

Which one is correct ? Or both ? I don't know when to use which one ? (If possible using both)
Anyone can help me out ?
This question's been driving me like crazy until now.

Thanks in advance.
The singular noun is preferred in formal writing, but both are acceptable; this same guideline applies to the plural 'these/those kinds of girl(s)'.
Thank you very much, Mr. Micawber.Emotion: smile