If after 200 grams of water were added to the 24%-solution of alcohol, the strength of the solution decreased by one-third, how much of the 24%-solution was used?  Choose the correct choice from the following answers:	A) 180 grams	B) 220 grams	C) 250 grams	D) 350 grams	E) 400 grams
The h20 content in 200 gms of water is 1   h20 content in 24% solution is 0.76   Resulting new solution's concentration decreases by one third means. Now it becomes 16% solution which means h20 content is 0.84   Let amount of solution be X   Then the equation can be set up   200*1 + 0.76X = 0.84 (X+200)   0.08X = 32   8X = 3200   X = 400   ANSW400 gramsR:400 grams
<result>E</result>
If after 200 grams of water were added to the 24%-solution of alcohol, the strength of the solution decreased by one-third, how much of the 24%-solution was used?