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What is the ratio of the number of cups of flour to the [#permalink]

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26 Oct 2008, 15:34

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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.

I got the wrong answer and I now know the correct answer but need the rationale - could someone tell me the answer and the rationale behind the answer? Thanks. I'll post the OA later.

Re: DS: Ratio of number of cups of flour to sugar [#permalink]

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26 Oct 2008, 19:43

tharunv wrote:

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.

I got the wrong answer and I now know the correct answer but need the rationale - could someone tell me the answer and the rationale behind the answer? Thanks. I'll post the OA later.

The question is asking -- what is f/s ?

(1) f = 250%(s) = (250*s)/100 ------ f/s = 5/2 ---- sufficient (2) f = s + s(1 1/2) = s + (3*s)/2 = (5*s)/2 ------ f/s = 5/2 ---- sufficient

answer is D ?
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Re: DS: Ratio of number of cups of flour to sugar [#permalink]

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27 Oct 2008, 11:23

I made the same mistake that amitdgr made and chose D. But I see what scthakur says - sheesh these silly mistakes can cost a lot! Thanks a lot guys for the response. OA is A.

Re: DS: Ratio of number of cups of flour to sugar [#permalink]

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27 Oct 2008, 14:44

tharunv wrote:

I made the same mistake that amitdgr made and chose D. But I see what scthakur says - sheesh these silly mistakes can cost a lot! Thanks a lot guys for the response. OA is A.

The worst part is F/S from (1) and your misinterpreted (2) arrives at 5.2 leaving you no room for second thought. after I saw D, I thought I dinged the Q by choosing A

Schools: LBS, INSEAD, IMD, ISB - Anything with just 1 yr program.

Re: DS: Ratio of number of cups of flour to sugar [#permalink]

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24 Aug 2009, 12:11

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Tejal,

You might want to re-read the stmt-2. 3/2 more cups is different from 3/2 times more cups. when it says times, you can take s + s(3/2) but it's just a cup and half over s so s + 3/2.

Infact, I too got the answer wrong, thought it was D and later figured out what was wrong, with my reading!!!!
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What is the ratio of number of cups of flour to number of [#permalink]

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23 Mar 2011, 04:47

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What is the ratio of number of cups of flour to number of cups of sugar in a cake recipe?

1) The number of cups of flour required in the reciped is 250% of number of cups of sugar required. 2) 1.5 more cups of flour than cups of of sugar are required in the recipe

Re: ratio of cups of flour to cups of sugar [#permalink]

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23 Mar 2011, 04:53

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nikhilsrl wrote:

What is the ratio of number of cups of flour to number of cups of sugar in a cake recipe?

1) The number of cups of flour required in the reciped is 250% of number of cups of sugar required. 2) 1.5 more cups of flour than cups of of sugar are required in the recipe

WE 1: 3 yrs f/t manager in aerospace (IT - Commercial - Int'l Mktg)

WE 2: 5 yrs freelance consultant to Gov't

Re: ratio of cups of flour to cups of sugar [#permalink]

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23 Apr 2011, 16:01

following a 'don't solve' approach, we can see that the question is focused on ratios (i.e proportions of a mixture) and needs the relationship between flour and sugar to be expressed in terms of a multiplier, fraction, percentage or two fixed values for the quantities involved.

1) sets out a relationship between the only two ingredients of the mixture, based on percentages *sufficient*.

2) sets out a relationship on a numerical value. For a proportion this won't work, as 1.5 cups to 3 cups is a very different proportion to a possible 100 cups to 101.5 *insufficient*

A is your answer and hopefully without pausing to work out all the numbers you have banked yourself a minute or so extra for later in the quant section (though with your having a Q50, I'll be the one asking your advice!!)
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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.

Statement 2 is

F = s + 1.5?

Is this correct

Yes, (2) translates: F = S + 3/2.
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Re: What is the ratio of the number of cups of flour to the [#permalink]

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02 Jul 2013, 13:02

fozzzy wrote:

Statement 2 is

F = s + 1.5?

Is this correct

Yes. I also chose D at first but in retrospect the question is easy if you read the word problem correctly.

Statement 1 says F = S multiplied by something, because it states '250% of y' of = times = * Statement 2 says F = S + 1.5 indeed, as the wording 'x more ... than y' = y + x

The first statement thus gives you a ratio (sufficient), the second does not as F could equal 5.5 and S 4 cups. Or F could equal 7 and S 5.5 cups which give different ratios.

Re: What is the ratio of number of cups of flour to number of [#permalink]

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