Win the game
Probability
Level
2
Two persons A and B throw a coin alternately till one of them gets a 'head' and wins the game.
Who has better chance of winning the game if A starts first ?
Both have same chances
B
A
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Even though both people have the same probability of getting 'head', that is 2 1 , A has a better chance of winning the game going first because if A wins the game on the first throw then B doesn't even have the chance to win anymore.