By writing it as 3(n-2) - n = 14 you can solve this to get n=10
You essentially let the bigger even consecutive number equal n, and therefore the smaller even number equals n-2. Three times the smaller even equals 3(n-2) and minus the bigger even number gives 3(n-2) - n which we know equals 14.
There are 20 girls on the team so theres your first number then you add the girls and boys to get the total number of players (46) and write out your ratio