A set of numbers has the property that for any number
t in the set, t +2 is in the set. If -1 is in the set, which
of the following must also be in the set?
I. -3
II. 1
III. 5
(Al I only
(B) IIonly
(C) I and II only
(D) II and III only
(E) I, II , and III
the OA is D
while I think I can be also true because the Q did not mention that -1 is the first member of set but one member of the set, so we can have -5 in the set as well and under this circumstance, we can also have -3.. to me the answer is
t in the set, t +2 is in the set. If -1 is in the set, which
of the following must also be in the set?
I. -3
II. 1
III. 5
(Al I only
(B) IIonly
(C) I and II only
(D) II and III only
(E) I, II , and III
the OA is D
while I think I can be also true because the Q did not mention that -1 is the first member of set but one member of the set, so we can have -5 in the set as well and under this circumstance, we can also have -3.. to me the answer is
