SAT Math Multiple Choice Question 858: Answer and Explanation

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Question: 858

Number of Graduates by Focus and Year
School Focus (District 1)20132014
Career and Technical
Education (CTE)
120115
Fine and Performing Arts146151
International Studies84104
Science, Technology, Engineering, and Math (STEM)163163
World Languages112117

3. A magnet school is a free public school that has a focused theme. According to thetable above, what was the increase in the total number of graduates in five of thesemagnet schools in District 1 from 2013 to 2014?

  • A. 25
  • B. 30
  • C. 35
  • D. 40

Correct Answer: A

Explanation:

A

Difficulty: Easy

Category: Problem Solving and Data Analysis / Statistics and Probability

Strategic Advice: A question like this is as straightforward as it sounds-so be extra careful with your calculations and you are sure to get it correct.

Getting to the Answer: Don't try to keep track of the changes in your head. Instead, jot them down to the right of the last column. Be sure to include a positive or negative sign to indicate whether each change is an increase or a decrease. Then add the changes to find the total increase.

20132014Change
120115-5
146151+5
84104+20
1631630
112117+5

To add quickly, notice that the first two changes cancel each other, so the total increase is 20 + 5 = 25, which is (A).

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