作者kk29212002 (Kevin)
看板GMAT
標題[Q. ] 一題數學
時間Wed Apr 11 21:17:48 2012
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!!
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推 catspace:年度總payroll=(450*900*12)+(30000*5)=501000 04/11 21:35
→ catspace:每次payroll=5010000/(12*2)=208750 # 04/11 21:36
→ catspace:更正第一算式結果為5010000 04/11 21:36
推 sddstop:(450*900+30000/12*5)/2=208750 04/11 21:37
→ sddstop:應該是忽略了經理人是年薪30000 員工是月薪900 04/11 21:38
→ kk29212002:我了解了 謝謝兩位大大!! 04/12 21:07