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【OG20-P149-20题】
From 2000 to 2003,the number of employees at a certain company increased by a factor of 14 . From 2003 to 2006,the number of employees at this company decreased by a factor of 13 . If there were 100 employees at the company in 2006,how many employees were there at the company in 2000?
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假设2000年employees为x
x*(1+1/4)*(1-1/3)=100
x*(5/4)*(2/3)=100
x*(5/6)=100
x=120
Melona
增加了1/4的因子 和 减少了 1/3 的因子 为什么是 (1+1/4)和 (1-1/3) 这两个不理解
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2022-11-22 22:29:03
你这只猪
increse and decrese
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2020-03-28 09:23:35
327023npxl
为什么1+1/4和1-1/3这两个不理解
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2020-03-05 14:43:16
212921mkxd回复327023npxl
1+1/4是增加员工了 1-1/3是减少员工了
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2020-09-02 16:37:18
432442ba
2006年人数是100，不是2000年，题目没看清
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2019-10-02 20:36:12
kshiyu
假设2000年有x人 x*（1+1/4）*（1-1/3）=100 x*（5/6）=100 x=120
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2018-07-09 13:06:42
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