[計量] 請問一題計量的意思是?

看板GRE作者 (Fender)時間15年前 (2010/09/29 20:42), 編輯推噓1(103)
留言4則, 2人參與, 最新討論串1/1
A certain clock marks every hour by striking a number 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 last stroke is 22 seconds. At 12:00, how many seconds elapse between the beginning of the first stroke and the end of the last stroke? 不太懂題目的意思 用猜得去作答就算錯了 @@ 所以上來問題目正確要問的是? Ans: 46 secs -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.166.196.31

09/29 21:17, , 1F
時間每個整點會打鐘(打的次數=整點數)
09/29 21:17, 1F

09/29 21:19, , 2F
每個鐘響的時間=鐘響的間隔時間
09/29 21:19, 2F

09/29 21:21, , 3F
6點時打鐘花了22秒(=6響+5個間隔) 12點時要花多少秒
09/29 21:21, 3F

09/29 23:00, , 4F
GOT IT! 謝謝你
09/29 23:00, 4F
文章代碼(AID): #1CepGUBs (GRE)