The inverse ratio of 3: 6: 1 is?
Options:
(A) 2:3:7
(B) 2:3:9
(C) 2:1:6
(D) 2:3:6
(E) 2:3:1 Stream of consciousness:
1/3: 1/6: 1/1 = 2:1:6
Thus, the answer is (C).