Chances of winning the game by cultural victory =20%
Chances of winning the game by Scientific victory =20%
Chances of winning the game by Diplomatic victory =20%
Chances of winning the game by military victories = total chances - ( combined chances of other three)
Chances of winning the game by military victories = 100% - ( 20%+20%+20%)
=100 % -60%
=40%
Answer: Chances of winning the game by military victories is 40%