Angelica and Basil are playing a game with the set of ordered pairs \(S = {(1, 3), (2, 1), (3, 2), (4, 4)}\).
In each ordered pair, the first number is Angelica's preference number for that pair, and the second number is Basil's preference number for that pair. Angelica takes the first turn and removes an ordered pair from set S. Basil takes the second turn and removes an ordered pair from among those remaining from set S. They continue taking turns until all the ordered pairs have been removed, at which time the game is over. Each player's final score is equal to the sum of that player's preference numbers for the ordered pairs he or she has removed.
Assume that each player always selects the available ordered pair for which his or her preference number is greatest. In the table, select a value for Angelica's final score and a value for Basil's final score that are jointly consistent with this assumption and the given information. Make only two selections, one in each column.
Getting a question like this one correct doesn't take a lot of thinking. So, even though, in a way, it's not an easy question, a question like this one can be a little bit of a break from the intensity of the DI section.
To get a question like this one correct, we have to understand the outlined procedure, keep things straight, and execute precisely.
Key Aspects of the Procedure
From the passage:
In each ordered pair, the first number is Angelica's preference number for that pair, and the second number is Basil's preference number for that pair.
Angelica takes the first turn, and Basil takes the second turn.
Each player's final score is equal to the sum of that player's preference numbers for the ordered pairs he or she has removed.
From the question stem:
Each player always selects the available ordered pair for which his or her preference number is greatest.
Executing the Procedure
(1, 3), (2, 1), (3, 2), (4, 4)
Angelica - (1, 3), (2, 1), (3, 2), (4, 4)
Basil - (1, 3), (2, 1), (3, 2)
Angelica - (2, 1), (3, 2)
Basil - (2, 1)
Angelica's total: 4 + 3 = 7
Basil's total: 3 + 1 = 4
Correct answer: 7, 4