KeerthanaPosted on 4, 19, 49, ?, 229 a 75 b 109 c 65 d 169 e None of the above Answer : Option BExplanation : 4 + 15 = 19, 19 + 30 = 49, 49 + 60 = 109, 109 + 120 = 229 Rate This:NaN / 5 - 1 votesAdd comment