[질문] 우의수 답좀알려주셈

1명이이길경우=3/6=1/21명이질경우=3/8=1/2둘다비길경우=>3/9(여기서3은(가위가위),(주먹주먹),(보보)=1/3경우의수=>3(가위바위보)*3(가위바위보)=>9