Official Solution: Bunuel
Alex and Jordan play a game, each betting $2 on each round. In each round, one of them wins. At the end:
• Alex won \(x\) rounds.
• Jordan lost $8 in total.
Select for
x the number of rounds Alex won, and select for
y the total number of rounds they played that would be jointly consistent with the given information. Make only two selections, one in each column.
Jordan losing $8 in total means that Jordan lost 4 more games than he won. This implies that Alex winning \(x\) rounds means Jordan won \(x - 4\) rounds, making the total number of rounds played \(x + (x - 4) = 2x - 4\), which must be even.
• If \(2x - 4 = 6\), then \(x = 5\). However, \(x = 5\) is not an option.
• If \(2x - 4 = 8\), then \(x = 6\), which is an available option.
Thus, Alex won \(x = 6\) rounds, and the total number of rounds they played was \(y = 2x - 4 = 8\).
Correct answer: x
"6"y
"8"