SAT Math Multiple Choice Question 754: Answer and Explanation

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Question: 754

4. Images

The graph above shows Rebecca's distance from her base camp as she hiked to a mountaintop, took a 1-hour break for lunch, and returned back to base camp. According to the graph, approximately how much longer was her hike to the mountaintop than her hike from the mountaintop back to base camp?

  • A. 20 minutes
  • B. 30 minutes
  • C. 45 minutes
  • D. 60 minutes

Correct Answer: B

Explanation:

B

Data Analysis and Problem Solving (graphical analysis) EASY

The graph indicates that Rebecca started her hike at 10:00 a.m. and stopped for lunch at 11:45 a.m. (The horizontal segment indicates when she is not moving, so that represents her 1-hour lunch break.) This first part of her hike, therefore. took 1 hour 45 minutes, or 105 minutes. The return hike began at 12:45 and lasted until 2:00 p.m., for a time of 1 hour 15 minutes, or 75 minutes. The difference is 105 - 75 = 30 minutes.

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