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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?

  
Total Answers and Comments: 6 Last Update: March 04, 2009     Asked by: satya 
  
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 Best Rated Answer
Submitted by: ajmani
 

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%



Above answer was rated as good by the following members:
jayapra09, milan.kadivar, nandu_2322310
December 15, 2007 02:25:18   #1  
ajmani Member Since: December 2007   Contribution: 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


 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    
December 15, 2007 02:25:22   #2  
ajmani Member Since: December 2007   Contribution: 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


 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    
January 01, 2008 03:44:55   #3  
madhan7788 Member Since: January 2008   Contribution: 1    

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
Answer is 7.5
jug contains 4 liter water with 15 of salt ie every unit of water contain 15 of salt
so if 1.5 liters of water spills out remaining water also contain same 15 of salt .if we add water to fill jug capacity (2.5 liters) water is double so salt percentage become half (7.5 )

 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    
October 22, 2008 03:04:32   #4  
vimalraja Member Since: October 2008   Contribution: 2    

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 remaining salt water in the jug is 2.5 litre. That contain 9.375 percent of salt


 
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February 19, 2009 01:48:44   #5  
varshaji Member Since: February 2009   Contribution: 1    

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
Given:
Actual salt water 4 litres (with 15 salt in it)
Spilled out 1.5 litres (with 15 salt in it)

Remaining is 2.5 litres (with 15 salt in it)
Now filled with pure water 2.5 litres (with 0 salt)


Solution:
So new quantity 5 litres
Water quantity doubles and
hence salt must dilute into half
Therefore salt is 7.5

 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    
March 04, 2009 13:10:14   #6  
manish deo Member Since: March 2009   Contribution: 3    

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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