MathDB
2015 Guts #24

Source:

July 28, 2022
2015Guts Test

Problem Statement

Trains AA and BB are on the same track a distance 100100 miles apart heading towards one another, each at a speed of 5050 miles per hour. A fly starting out at the front of train AA flies towards train BB at a speed of 7575 miles per hour. Upon reaching train BB, the fly turns around and flies towards train AA, again at 7575 miles per hour. The fly continues flying back and forth between the two trains at 7575 miles per hour until the two trains hit each other. How many minutes does the fly spend closer to train AA than to train BB before getting squashed?