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【OG20-P288-396题】
Jazz and blues recordings accounted for 6 percent of the $840 million revenue from the sales of recordings in Country Y in 2000. What was the revenue from the sales of jazz and blues recordings in Country Y in 1998 ?
(1) Jazz and blues recordings accounted for 5 percent of the revenue from the sales of recordings in Country Y in 1998.
(2) The revenue from the sales of jazz and blues recordings in Country Y increased by 40 percent from 1998 to 2000.
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题干:2000年J&b=6%*840,求1998年J&b
条件1:J&b占5%,总唱片收入多少未知,不充分
条件2:6%*840/(1+40%),充分
题目讨论 (4条评论)

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1048993hyug
文字游戏
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0 回复 2022-10-14 02:59:16
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susan0424
为什么这里假设了1998年的jazz和blue占比没变呢
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0 回复 2022-02-08 11:49:53
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willowX回复susan0424
没默认不变。条件2直接说的jazz&blued的收益,只有题目里是拿比例和总收益乘的
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0 回复 2022-08-19 12:53:37
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冲他丫的
2可算 1不可
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0 回复 2021-10-17 12:55:20
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贾思敏
题干:the revenue from the sales of jazz and blues recordings in Country Y in 2000:6%*840=50.4 million,问1998年jazz and blues的收入是多少? 这个题很简单,只要知道Jazz and blues在1998年的收入和在2000年的收入之间的关系,就可以求出1998年的收入。
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0 回复 2021-09-25 17:15:15