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December 19, 2014

December 19, 2014

Posted by **lidia** on Monday, March 18, 2013 at 7:03pm.

My answer is 136, am i right?

- math -
**Damon**, Monday, March 18, 2013 at 7:19pma + b = 680

a/b = 2/3

2 b = 3 a

a = (2/3) b

so

(2/3) b + b = 680

(5/3 ) b = 680

b = 408

then a = (2/3)408 = 272

then b - a = 136 ml

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