Brain Teasers
Even More Mad Ade Clocks
Mad Ade sat at home, waiting for his favourite TV program "I'm a celebrity, Get me a Kebab" to start. He glanced at his clock and began to wonder strange and wondrous things, but that is another story altogether.
He realised that he could leave 6 adjacent numbers of the face of a clock intact and rearrange the other 6 in such a way that the sum of every pair of adjacent numbers is prime.
Unfortunately the TV program started at that point so he never actually got around to doing it. Can you find the two possible solutions to Mad Ade's clock teaser?
He realised that he could leave 6 adjacent numbers of the face of a clock intact and rearrange the other 6 in such a way that the sum of every pair of adjacent numbers is prime.
Unfortunately the TV program started at that point so he never actually got around to doing it. Can you find the two possible solutions to Mad Ade's clock teaser?
Answer
Imagining the number on a clock face in a clockwise order they would be1 2 3 4 7 10 9 8 5 6 11 12
Or
1 2 3 4 9 10 7 6 5 8 11 12
Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments hidden to avoid spoilers.
Follow Braingle!