Bunuel
Jane has a 40-ounce mixture of apple juice and seltzer that is 30% apple juice. If she pours 10 more ounces of apple juice into the mixture, what percent of the mixture will be seltzer?
(A) 33%
(B) 44%
(C) 50%
(D) 56%
(E) 67%
1) Find the number of ounces of seltzer now
2) Find new mixture's total ounces of
liquid. Ignore the apple juice percent.
3) Find percent seltzer in new mixture
1) How many ounces of seltzer now?
40 ounces of liquid are 30% apple juice, so 70% are seltzer. Number of ounces of seltzer:
\((.7*40)=28\) ounces seltzer
2) Jane pours
10 more ounces of apple juice into the mix.
Total ounces of
liquid now: \(40oz. + 10oz.=50\) ounces*
3) New mixture is what percent seltzer?
Number of seltzer ounces has not changed. Percent seltzer:
\(\frac{SeltzerOz}{TotalOz}=\frac{28}{50}=(\frac{56}{100}*100) = 56\) percent
Answer D
*We don't care about the fact that the new ounces of liquid are apple juice. If we were tracking on apple juice percent, we would care. We are tracking on seltzer percent. No seltzer is added. All we need is the new total volume of liquid to find percent seltzer in new mix.I miss read the question so badly. This happens when someone immersed too much in Sentence Correction. I thought only seltzer is 30% apple juice as "that " was modifying seltzer.
. And, therefore, I was not able to make sense of the question.
Height of smartness.