In a school of 750 students only 75 students cannot speak in any of the three foreign languages, viz., English, French and German, and the same number of students can speak in all the three foreign languages. 125 can speak neither French nor German, but English. In turn, 125 students can speak in French and German but not English. If the total number of students who can speak in English is 325, then how many can speak in at least two languages?