[計量] 請問一題數學
A certain clock marjs every hour by striking a number of times equal to the
hour, and the time required for a stroke is exactky to the time interval
between strokes. At 6:00 the time lapse between the brginging of the first
stroke and the end of the last stroke is 22 seconds. At 12:00, how many seconds
elapse between the brginging of the first stroke and the end of the last stroke
?
(A)72
(B)50
(C)48
(D)46
(E)44
D
我連題目都不是很懂 想請問一下這題該怎麼解
謝謝
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