Take Your Time Puzzle - Solution

The Puzzle:

Take Your Time
Hungry Horace woke up one morning to find that his only clock had stopped working because the plug fell out.

Horace didn't have a watch, telephone, radio, television or anything else to give him the right time. His nearest neighbor lived over 2 km away, and the only way to get there was by walking.

Later that day, Horace could be found sitting in his kitchen, looking at his clock, which was now working, and showing the right time. How did he do it?

Our Solution:

Horace walked to his friend's house AFTER STARTING HIS CLOCK AT HOME AND NOTING THE TIME IT SAID.

He then gets the correct time off his friend (let's say it is 10:15 am) and walks back at the same speed.

By looking at his clock he can see how long he was away (say 80 minutes). He therefore works out that the journey home took 40 minutes, so he adds 40 mins to 10:15 and sets the clock at 10:55 am. Done!
Puzzle Author: Stephen Froggatt

See this puzzle without solution
Discuss this puzzle at the Math is Fun Forum