1) 1, 4, 27,16, ?, 36, 343 A) 125 B) 25 C) 120 D) 87 Answer: Option AExplanation:clearly, the,given series consists of cubes of odd numbers and squares of even numbers, ie., 13, 22,33, 42,..... So, missing term = 53 = 125. Hence, the answer is (a).