Question 13
Eight cards are numbered 1, 2, 3, 4, 5, 6, 7 and 8. An, Bình and Châu each draw two cards.
• Bình: one number is twice the other.
• Châu: the two numbers sum to 9.
• An: the two numbers sum to 7, but their difference is not 3.
Which two cards remain?
• Bình: one number is twice the other.
• Châu: the two numbers sum to 9.
• An: the two numbers sum to 7, but their difference is not 3.
Which two cards remain?