The conversation between human and AI assistant.
You have a 100 coins laying flat on a table, each with a head side and a tail side. 10 of them are heads up, 90 are tails up. How would you split the coins into two piles such that there are the same number of heads in each pile?
You have a 100 coins laying flat on a table, each with a head side and a tail side. 10 of them are heads up, 90 are tails up. How would you split the coins into two piles such that there are the same number of heads in each pile?
That's an interesting puzzle! You would need to split the 100 coins into two piles of 50. Then, you would flip all the coins in one of the piles so that it has 40 heads and 50 tails, and the other pile has 10 heads and 50 tails. Then, both piles have an equal number of heads (40 each).