BTGmoderatorDC wrote:The ratio of flour to water to sugar in a recipe is 7:4:1. The ratio in a new recipe calls for a doubling of the ratio of flour to water from the original recipe and a halving of the ratio of flour to sugar. If the new recipe calls for 8 cups of water, how much sugar is required?
(A) 4 cups
(B) 6 cups
(C) 8 cups
(D) 12 cups
(E) 16 cups
Original ratio:
F:W:S = 7:4:1
A new recipe calls for a doubling of the ratio of flour to water.
Doubling F/W = 7/4, we get:
2 * 7/4 = 7/2
Resulting ratio:
F:W:S = 7:2:1
A halving of the ratio of flour to sugar.
Halving F/S = 7/1, we get:
(1/2)(7/1) = 7/2
Resulting ratio:
F:W:S = 7:2:2
Since W:S = 2:2 = 1:1, the new recipe requires an equal amount of water and sugar.
If the new recipe calls for 8 cups of water, how much sugar is required?
sugar = water = 8 cups
The correct answer is
C.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at
[email protected].
Student Review #1
Student Review #2
Student Review #3
