Head over Tails!
Arrange 4 coins in a row, facing tails up.
Turn any 3 coins over. This is 1 move!
(for every move you MUST turn over 3 different coins)
What is the fewest moves needed to get all of the coins on heads?
Remember: One move requires you to change 3 coins.
Does it work with 5 coins?
With 4 coins you can do it in 4 moves and with 5 you can do it in 5 moves.
For 5 coins it takes 5 turns. For 6 coins it takes 2. For 7 my Dad says it takes a miracle.
Well done lads. Did it take much figuring out? I definitely had to give it a few tries before I got ‘lucky’. 🙂
I thought it was funny when we dressed up in Victorian clothes.
Jack
You will need to do four moves to get the answer. I did this:
T T T T
H H T H
T T H T
H T T T
H H H H