ChallengeMedium
Challenge · Medium problem
You start with $3 and your opponent starts with $4. Each round a fair coin is flipped and $1 passes from the loser to the winner; play stops when someone is broke. Find the expected number of rounds played.
You start with $3 and your opponent starts with $4. Each round a fair coin is flipped and $1 passes from the loser to the winner; play stops when someone is broke. Find the expected number of rounds played.