英语智力问题...快啊how many minutes is it before 12 o'clock noon if 12minutes ago it was three times as many minutes past 9a.m

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英语智力问题...快啊how many minutes is it before 12 o'clock noon if 12minutes ago it was three times as many minutes past 9a.m

英语智力问题...快啊how many minutes is it before 12 o'clock noon if 12minutes ago it was three times as many minutes past 9a.m
英语智力问题...快啊
how many minutes is it before 12 o'clock noon if 12minutes ago it was three times as many minutes past 9a.m

英语智力问题...快啊how many minutes is it before 12 o'clock noon if 12minutes ago it was three times as many minutes past 9a.m
如果12分钟前是9点后的三倍的这个时间那么中午12点前有多少分钟
也就是“这个时间”等于“多少分钟”
12点减去12分钟是11点48分
11点48分减去9点是2小时48分
2小时48分除以3是56分钟
此时是11点06分,也就是说这根问题是问从11点04分到12点多长时间
答案:56分钟(fifty-six minutes)

132分钟
其中牵涉到上午9点到中午12点。
假设9:00为0,以分钟计12:00为180.
【180-(x-12)】=3*x
得x=48.
该时间点到12点(即180分)的分钟数为132分钟。

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x=3(12*60-(12+x)-9*60)