Q1: (?) + 3699 + 1985 - 2047 = 31111

ANS:B - 27474

x + 3699 + 1985 - 2047 = 31111    x + 3699 + 1985 = 31111 + 2047    x + 5684 = 33158    x = 33158 - 5684 = 27474.