[Q. ] 一題數學

看板GMAT作者 (Kevin)時間12年前 (2012/04/11 21:17), 編輯推噓2(2推 0噓 4→)
留言6則, 3人參與, 最新討論串1/1
In a certain factory,the averge(arithmatic mean)monthly salary for the 450 office and assembly workers is $900 and the averge annual salary for the 5 managers is $30000.Payroll checks are issued twice a month.If there are no other employees,what is the average amount of a single payroll? 答案是$208,750 但我怎麼都算不太出來 想請教各位高手>"< 最後問的average payroll又是在問哪個值呢? 感謝各位!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.113.123.39
推
04/11 21:35, , 1F
年度總payroll=(450*900*12)+(30000*5)=501000
04/11 21:35, 1F
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04/11 21:36, , 2F
每次payroll=5010000/(12*2)=208750 #
04/11 21:36, 2F
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04/11 21:36, , 3F
更正第一算式結果為5010000
04/11 21:36, 3F
推
04/11 21:37, , 4F
(450*900+30000/12*5)/2=208750
04/11 21:37, 4F
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04/11 21:38, , 5F
應該是忽略了經理人是年薪30000 員工是月薪900
04/11 21:38, 5F
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04/12 21:07, , 6F
我了解了 謝謝兩位大大!!
04/12 21:07, 6F
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