2015 AMC 12B Problem 2
Below is the professionally curated solution for Problem 2 of the 2015 AMC 12B, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2015 AMC 12B solutions, or check the answer key.
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Difficulty rating: 910
2.
Marie does three equally time-consuming tasks in a row without taking breaks. She begins the first task at 1:00 PM and finishes the second task at 2:40 PM. When does she finish the third task?
3:10 PM
3:30 PM
4:00 PM
4:10 PM
4:30 PM
Solution:
The first two tasks together take minutes, so each task takes minutes.
The third task finishes minutes after 2:40 PM, at 3:30 PM.
Thus, the correct answer is B.
Problem 2 in Other Years
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