A chessplayer 18 games he played if his ratio of wins to lose was2:1 how many games did he play total

2:1 2+1=3

(times 2) 4:2 4+2=6

(times 3) 6:3 6+3 = 9

(because 18 is what you're looking for, you multiply your last answer by 2) 6 times 2 = 12 3 times 2 = 6

12:6 is the final ratio 12+6=18