if it’s 20 games and 60% were at home, then it was 12 games at home
if they won 2/3 of those games, 2/3 of 12 is 8 games won at home
if there are 20 total games and 50 percent they win, then 10 total games he saw ended in wins
if 8 games of 10 total wins were at home, then 2 away games were wins
good luck with the rest of your test :)