(60/61)*6*60=(60/59)*x*60
x=(59*6)/61=5.80327
0.80327*60=48.1967
沒看懂答案,自己試試看,也是這個結果
(60/61)*6*60=(60/59)*x*60
x=(59*6)/61=5.80327
0.80327*60=48.1967
沒看懂答案,自己試試看,也是這個結果
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