leonswati wrote:A paint mixture contains blue paint and yellow paint in a ratio of 5:2. If there are 14 liters of yellow paint in the mixture, how many more liters of yellow paint must be added to make the mixture 2/3 yellow?
1. 29/3
2. 35/2
3. 47/2
4. 56
5. 60
Going mad with this problem.. Can someone solve it...
I added crucial information missing from the posted problem: after the yellow paint has been added, the mixture is to be 2/3 yellow.
B:Y = 5:2 = 35:14.
Thus, there are 35 gallons of blue paint, 14 gallons of yellow paint, and 35+14 = 49 total gallons of paint.
Since 2/3 of the new mixture is to be yellow, the 35 gallons of blue paint must be 1/3 of the new mixture:
35 = (1/3)x
x = 105.
New total - old total = 105-49 = 56.
The correct answer is
D.
,
Last edited by
GMATGuruNY on Fri Sep 09, 2011 8:20 am, edited 1 time in total.
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