Escape the zombie bridge — detailed plan
Riddle:
4 people (1 min, 2 min, 5 min, 10 min) cross with 1 torch, 2 at a time max. Cross in 17 min. How?
Answer:
Answer: 1&2 cross (2 min), 1 returns (1 min, total 3), 5&10 cross (10 min, total 13), 2 returns (2 min, total 15), 1&2 cross again (2 min, total 17). Explanation: This minimizes total time by pairing slowest together once and using fastest for returns.