5,9,16,28,48,__\nOptions:\n(A) 79\n(B) 80\n(C) 81\n(D) 82\n(E) 83 Now, let's think a bit. Some random thoughts:
User
(9+5) +2 = 16\n(16+9) +3 = 28\n(28+16)+4 = 48\n(48+28)+5 = 81
The final answer: (C).
Assistant