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# What is the ratio of the number of cups of flour to the

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Senior Manager
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What is the ratio of the number of cups of flour to the [#permalink]  21 Nov 2006, 19:46
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What is the ratio of the number of cups of flour to the number of cups of sugar required in a certain cake recipe?

1) The number of cups of flour required in the recipe is 250% of the number of cups of sugar required in the recipe.

2) 1 1/2 more cups of flour than cups of sugar are required in the recipe.
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Senior Manager
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Yup - that's what I thought as well. I will wait to hear some more responses before revealing the answer.
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getting A

1) Suff

2) Cups of Flour = 11/2 + Cusps of Sugar, we can't calculate the ratio from here
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It's A

1) flour to sugar = 250/100 = 2.5:1
2) flour to sugar = S+1.5/S = 1+1.5/S
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rom A. If we make X = Flour and Y = Sugar.
X = 2.5Y
This is SUFF, since the ratio = 2.5:1

From B. If we make X = Flour and Y = Sugar
X could be 10.5 cups
Y could be 8 cups
Ratio = 10.5:8

OR
X could be 21
Y could be 18.5
Ratio = 21:18.5

Different outcomes, so INSUFF

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Re: GMAT Prep DS [#permalink]  21 Nov 2006, 22:40
What is the ratio of the number of cups of flour to the number of cups of sugar required in a certain cake recipe?

1) The number of cups of flour required in the recipe is 250% of the number of cups of sugar required in the recipe.

2) 1 1/2 more cups of flour than cups of sugar are required in the recipe

From 1

F= S(250/100)=5S/2==> F/S=5/2 Suff

From 2
XF=YS+3/2F

Insuff
Senior Manager
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Thanks everyone - A is the answer.
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