1) 2, 5, 9, 19, 37, ? A) 75 B) 76 C) 73 D) 78 Answer: Option AExplanation:Clearly, we have : 2 x 2+ 1 =5, 5 x 2 - 1 = 9, 9 x 2 + 1= 19, 19 x 2 -1 =37. ..... So, missing term = 37 x 2 + 1 = 75 Hence, the answer is (a)