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# Tip #13 to Get a Top SAT Math Score (page 2)

By McGraw-Hill Professional
Updated on Sep 10, 2011

1. C   Test each choice. Choice I is correct since i represents the total of c + f, which is the total of a + b + d + e. That is why II is also correct. Choice III, however, is false since g + c does not equal i.
2. 275   Since Sra. Moran and Mrs. Nicholas received the most votes, they must represent the 30% and 25% sections which are largest. These add up to 55%. Since there were 500 students surveyed, we want 55% of 500 which means 0.55 × 500 = 275.
3. D   Use the graph to estimate sales for each book. Then add those up and divide by 4 to get the average. Notice that the graph tells us that the numbers represent thousands of books! So the answer is choice D. Remember, the key to tables and graphs is to read the headings and legend, if there is one.
4. A   This is an unusual graph, but one that the SAT uses quite often. If it seems difficult, work with it until it makes sense. The coordinates of each point represent the student's score on the two tests. So we are looking for a point where the y value (test II) is bigger than the x value (test I). Even though we cannot determine exact values on the graph, point A (70, 90) clearly has the largest increase from test I to test II. Point B improves less (70, 80), and the other three choices went down from test I to test II.

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