[計量] A certain clock marks every hour by ...
A certain clock marks every hour by striking a munber of times equal to
the hour, and the time required for a stroke is exactly equal to the time
interval between strokes. At 6:00 the time lapse between the beginning of
the first stroke and the end of the lapse stroke is 22 seconds. At 12:00,
how mant seconds elapse between the beginning of the first stroke and the
end of the last stroke?
A 72
B 50
C 48
D 46
E 44
Ans:D
看了幾次實在想不通..
請大家幫我解答一下吧!!
感謝!
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推
12/27 00:39, , 1F
12/27 00:39, 1F
→
12/27 00:41, , 2F
12/27 00:41, 2F
→
12/27 00:42, , 3F
12/27 00:42, 3F
→
12/27 00:43, , 4F
12/27 00:43, 4F
→
12/27 00:45, , 5F
12/27 00:45, 5F
→
12/28 23:31, , 6F
12/28 23:31, 6F
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