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Question:  A 5 litre jug contains 4 litres of a salt water solution that is 15 percent salt. If 1.5 litres of the solution spills out of the jug, and the jug is then filled to capacity with water, approximately what percent of the resulting solution in the jug is salt?



December 12, 2007 02:25:22 #2
 ajmani   Member Since: December 2007    Total Comments: 4 

RE: A 5 litre jug contains 4 litres of a salt water solution that is 15 percent salt. If 1.5 litres of the solution spills out of the jug, and the jug is then filled to capacity with water, approximately what percent of the resulting solution in the jug i
 

the answer is 7.5%.
this is how we get it.
initially quantity of salt = (15/100)*4=.6 ltr
when 1.5 ltr sol spills,the salt lost is (15/100)*1.5=.225 ltr
now salt left = .6-.225=.375 ltrs
as jug is filled to its capacity,total sol = 5ltrs
% of salt =(0.375/5)*100=7.5%

     

 

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