Question 20
The letters I, M, S and O, as well as digits 1 and 5 are written in a row in some order.
(1) M is located either on the first or the last from the left.
(2) S is the located on the fourth position from the left.
(3) S is to the left, not necessarily immediately, of O.
(4) I is to the right, not necessarily immediately, of M.
(5) Letter O and digit 1 are next to each other.
(6) There is exactly one other letter or digit between I and 1.
What must be written in the second position from the left?
(1) M is located either on the first or the last from the left.
(2) S is the located on the fourth position from the left.
(3) S is to the left, not necessarily immediately, of O.
(4) I is to the right, not necessarily immediately, of M.
(5) Letter O and digit 1 are next to each other.
(6) There is exactly one other letter or digit between I and 1.
What must be written in the second position from the left?