Birthday Math

Number Theory Level pending

Five siblings wrote down their birth dates and the corresponding day:

  • Charles: 24 Sept 1991 (Friday)

  • Darius: 30 May 1994 (Thursday)

  • Brenda: 19 Nov 1996 (Wednesday)

  • Alfred: 1 Nov 1999 (Tuesday)

  • Eric: 4 Dec 2000 (Monday)

One of them identified the day correctly. Given that 1 Jan 2015 falls on a Thursday, who is correct?

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