Re: [計量]OG-data sufficiency
※ 引述《Levitan (榮哥 )》之銘言：
: 不好意思麻麻煩板上的強者,下面這兩題我想了好久
: 看了解答還有不太了解,希望解答一下.謝謝! <(_ _)>
: 第36題
: The profit from the sale of a certain appliance increases,
: though not proportionally, with the number of units sold.
: Did the profit exceed four dollars million on sales of 380,000
: units?
: (1) The profit exceeded two million dollars on sales of 200,000
: units.
: (2) The profit exceeded five million on sales of 350,000 units.
題目說，利潤隨著銷售數量增加而提升，但不會呈現線性關係
問你若出售380,000個商品，利潤會否超過$4 million?
(1)出售200,000個商品利潤超過$2 million
因為不是線性關係，所以不知道是否符合題目
(2)既然僅出售350,000個商品利潤就超過$5 million
那麼多出售30,000個不會賺更少吧?(前提:利潤隨銷售數量增加而提升)
: 第55題
: At a certain picnic, each of the guests was served either a single
: scoop or a double scoop of ice cream. How many of the guests were
: served a double scoop of ice cream?
: (1) At the picnic, 60 percent of the guests were served a double
: scoop of ice cream.
: (2) A total of 120 scoops of ice cream were served to all the guests
: at the picnic.
在一次活動中，每個人可得到一球or兩球冰淇淋，有多少人得兩球?
(1)有60%的人得到兩球-->不知道總人數無法得知......insufficient
(2)總共發了120球-->不知道比例無法得知......insufficient
(1)+(2)比例&總數都知道當然可以求出......sufficient
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01/26 12:19, , 1F
01/26 12:19, 1F
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