Question 18
In a game, each of four friends $A,B,C,D$ wears a shirt numbered 6, 7 or 8. Anyone wearing 7 must always lie, while anyone wearing 6 or 8 must always tell the truth. Asked for the sum of the four shirt numbers, they reply:
A: “The sum is 28.”
B: “The sum is 27.”
C: “The sum is 26.”
D: “The sum is 25.”
What number is on B's shirt?
A: “The sum is 28.”
B: “The sum is 27.”
C: “The sum is 26.”
D: “The sum is 25.”
What number is on B's shirt?