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# The level of salt concentration in Lake A increased by 20%

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CEO
Joined: 21 Jan 2007
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Location: New York City
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The level of salt concentration in Lake A increased by 20% [#permalink]

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18 Oct 2007, 07:24
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The level of salt concentration in Lake A increased by 20% from 1900 to 2000 while that in Lake B decreased by 10%.

Is the current level of salt concetration in Lake A higher than Lake B?

1. In 1900, the level of salt concentration in Lake B was 10% higher than that in Lake A
2. In 1900, the level of salt concentration in Lake B was 4%
Director
Joined: 13 Nov 2003
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Location: BULGARIA
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18 Oct 2007, 07:33
Hi
STMNT 1
year 1900 lake B=1,1lakeA
year 2000-lake A =1,2 Lake A 1900
year 2000-lake B=0,99 Lake A 1900
so A is SUFF
Stmnt 2 -Insuff
18 Oct 2007, 07:33
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