SSAT Math Question 178: Answer and Explanation
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Question: 178
12. An airplane on a transatlantic flight took 4 hours 20 minutes to get from New York to its destination, a distance of 3000 miles. To avoid a storm, however, the pilot went off his course, adding a distance of 200 miles to the flight. Approximately how fast did the plane travel?
- A. 640 mph
- B. 710 mph
- C. 738 mph
- D. 750 mph
Correct Answer: C
Explanation:
The correct answer is (C). Since distance = rate × time, rate = distance ÷ time. Total distance traveled is 3200 miles. Total time is 4 hours 20 minutes.
Rate = 3200 miles ÷ 4 hours 20 minutes
= 3200 miles ÷ 4
hours
= 738 mph, approximately