The correct option is C a=bq+r, where 0<r<b
Letaandbareintegers,b>0LetusconsidertheA.Pwithfirsttermaandcommondifferenceb.Thentheseriesis−−−−−,(a−3b),(a−2b),(a−b),a,(a+b),(a+2b),−−−−Letrbethesmallesttermsatisfyingtheinequality0<r<b.Thenwecanhaveanonintegerqsuchthata−bq=r⇒a=bq+r−−−−0<r<b∴OptionCiscorrect.