so here's the question:
David runs a casino, in it, there's a game that includes flipping a coin 6 times.
People pay a certain entrance fee to play this game.
- if the coin lands on heads 6 times the player gets 200 dollars
- if the coin lands on heads 5 times the player wins 50 dollars
- if the coin lands on heads 4 times the player wins 20 dollars.
- any other possibility the player doesn't win anything.
On average David wins 187.5 dollars in one game.
One day Rick comes and changes one thing in the game. after the change, David doesn't win or lose anything per each game. What could've been the change that rick did?
- A) decrease the entrance fee by 2 folds (entrance fee is now half of what it was)
- B) increased the prize for 6 times heads by 12000 dollars
- C) changed the coin to a fake coin that always lands on heads
- D) he said after paying the entrance fee each player starts with 187.5 dollars