ISEE Mathematics Achievement Question 59: Answer and Explanation
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Question: 59
3. Two cars are 550 miles apart, both traveling on the same straight road toward each other. If one travels at 50 miles per hour, the other at 60 miles per hour, and they both leave at 1 p.m., what time will they meet
- A. 4 p.m.
- B. 4:30 p.m.
- C. 5:45 p.m.
- D. 6 p.m.
Correct Answer: D
Explanation:
The correct answer is (D). The cars are traveling toward each other, so the distance between them is being reduced at 60 + 50 = 110 miles per hour. At a rate of 110 mph, 550 miles will be covered in 5 hours. If both cars left at 1 p.m., they should meet at
6 p.m.