I-See 論壇 » IQ區 » [轉]鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?

2007-9-7 07:54 PM �璇屣�ki��
[轉]鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?

[size=3][color=Red]鐘打4下,要3秒,咁鐘打7下,要幾多秒呢[/color][/size]


















































[color=Red]6秒

因為鐘每打一下與第二下之間相隔1秒,so 7下便6秒[/color]

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