Vinegar 2

How many percentages of vinegar solution will we get if we mix 3.5 liters of 5.8% and 5 liters of 7.6% vinegar?

Correct result:

x =  6.86 %

Solution:

x1=3.5 5.8100+5 7.6100=5831000=0.583 l V=3.5+5=8.5 l  x=100 x1V=100 0.5838.5=58385=6.86%



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Showing 2 comments:
#
Nestor
Solution is wrong.
x=[12(4.3) + 1(3.7)]/ (12+1)=4.25%

#
Math student
@Nestor the answer is correct. I figured another solution is just to average the concentrations of the solutions as the volume is same.

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