2015 AMC 8 Problem 3
Below is the video solution and professionally curated solution for Problem 3 of the 2015 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2015 AMC 8 solutions, or check the answer key.
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Difficulty rating: 660
3.
Jack and Jill are going swimming at a pool that is one mile from their house. They leave home simultaneously. Jill rides her bicycle to the pool at a constant speed of miles per hour. Jack walks to the pool at a constant speed of miles per hour. How many minutes before Jack does Jill arrive?
Video solution:
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Written solution:
Jack travels at a rate of miles per minutes. Therefore, it takes him minutes to get to the pool.
Jill travels at a rate of miles per minutes. Therefore it takes her minutes to get to the pool.
Therefore, the difference in their times is minutes.
Thus, the correct answer is D .
Problem 3 in Other Years
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