What will come in place of the x in the following Number series? 2, 7, 27, 107, 427, x\nOptions:\n(A) 1427\n(B) 1607\n(C) 1707\n(D) 2047\n(E) 2147 Stream of consciousness:
User
2\n2 × 4 - 1 = 7\n7 × 4 - 1 = 27\n27 × 4 - 1 = 107\n107 × 4 - 1 = 427\n427 × 4 - 1 = 1707
Thus, the answer is (C).
Assistant