John and Bill wanted to play only one game Ping-pong.The first player to reach 21 points wins the game.
John is 20% better than Bill — meaning he scores a 20% higher chance of scoring a point.
Bill said to John "well, you`ll win if we score as usual,cause you play better than me".
"how do you want us to score then?" asked John.
Bill:"any point I`ll score will be counted as(1.5) points to me,and for you a point will be as it is only one point,do you agree?"
" OK" said john,"but I`ll start the first serve".
Each player serves three points in a row and then switch server.
Now, who won that game?