ExplanationPlug in some real numbers to compare quantities. For example, plug in 10 for the number of games in the season. For the first 5 games of the season, try an average of 10 points for David (for a total of 50 points), which makes an average of 12 points for Antonio (for a total of 60 points).

Next, try a total of 0 points for each player for the second half of the season; now Antonio’s average for the season is 6 points, and David’s is 5. Because 90% of 6 is 5.4, Quantity A is greater, so eliminate choices (B) and (C).

Finally, try a total of 100 points for each player for the second half of the season; now Antonio has scored a total of 160 points in 10 games, for an

average of 16 points, and David has scored a total of 150 points in 10 games, for an average of 15 points. Because 90% of 16 is 14.4, Quantity B is now greater, so eliminate choice (A), and you’re left with choice (D).

Hence option D is correct.
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Sandy

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