Question

若1999分之1997+1998+1999+2000+2001=N分之2002+2003+2004+2005+2006,

Answer 1

(1997+1998+1999+2000+2001)/1999=(2002+2003+2004+2005+2006)/N

5*1999/1999=5*2004/N

N=2004