Math Chapter Wise Sequences And Series (A.p., G.p., H.p.) English MCQ PGT 2011, 2010 Q.If 1 1 1,,, b c c a a b + + + + + + + + + + + + are in A.P. then Aa,b,c are in A.P. Ba2,b2,c2 are in A.P. C1 1 1,, a b c are in A.P. DNone of these. Show answer Correct answer: a2,b2,c2 are in A.P.