大全-16-15，请助拳！

tonyadidas

C的确是唯一可以去思考的选项，但不一定能达到削弱的目的啊？New jobs(provided 200)>Eliminated jobs(provided 100), 在假设New jobs average pay is 2 dollars,that of  Eliminated jobs is 2 dollars as well, 原有jobs 1000份，average pay is 1 dollar， 那么现在的average is （200*2-100*2+900*1）/1100=1 dollar, 没变嘛，换套数据，增加New jobs(provided 500)，或Average pay of New jobs is 10(which is higher than average pay city wide)显然average paycheck就变高了嘛， 哪里削弱了呢？

swimmingfrog

能不能麻烦把题目全贴出来？

brace

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携隐

楼主贴全题目吧。 谢谢。