An expected value problem

[Medellon]

If a chess player playing a computer has a 40% chance of winning, what are his chances of winning once in the next 3 games? Exactly how is this solved?

 

[Nohr]

Wouldn't that be 40 over 100 = X over 3? Been a while since I've taken algebra classes..

 

[Medellon]

Any others?