For any integer a and b there exists unique integers q and r such that a=3q+r.find the value of r

For any integer a and b there exists unique integers q and r such that

1.	For any integer a and b there exists unique integers q and r such that a=3q+r.find the value of r
Answer» 0,1,2 A=bq+r0< or =rb=3a=3q+r.0r=0,1,2.Therefore possible values of r are 0,1,2.