KeerthanaPosted on Find ratio of books read by B & C together in 2005 to books read by A & D together in 2006. a 15 : 16 b 5 : 6 c 1 : 5 d 4 : 7 e 2 : 3 Answer : Option AExplanation : Required ratio = 60+9090+70frac{{60 + 90}}{{90 + 70}}90+7060+90 =150160=15:16 = frac{{150}}{{160}} = 15:16=160150=15:16 Rate This:NaN / 5 - 1 votesAdd comment