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

Question

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 percent of the number of cups of sugar required in the recipe.

(2)  1\frac{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.

BarneyStinson · Accepted Answer

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!!!!

fluke · Answer

Let the number of cups of flour = F
Let the number of cups of sugar = S

Q: What is F/S=?

1. 
F=2.5S
F/S=2.5
Sufficient.

2. F=1.5+S

Say; S=10; F=11.5
F/S = 11.5/10=1.15

S=100;F=101.5
F/S=101.5/100=1.015

Not Sufficient.

Ans: "A"

amitdgr · Answer

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 ?

scthakur · Answer

Answer should be A.

stmt2 says, f = s + 3/2 and hence, f/s cannot be determinded.

tejal777 · Answer

Guys why is this wrong?whats the silly mistake here I am unable to understand..

subhashghosh · Answer

From (1)

F/C = 250 % = 250/100, so enough (the ratio can be found = 2.5)

Sufficient

From (2)

F = C + 1.5

Ratio can't be found

So not sufficient

Answer - A

bleemgame · Answer

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!!)

*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!!)

fozzzy · Answer

Statement 2 is

F = s + 1.5?

Is this correct

Bunuel · Answer

Yes, (2) translates: F = S + 3/2.

MadCowMartin · Answer

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.

thus the answer is A.

anairamitch1804 · Answer

Let's say 
1) 
x = sugar 
5/2x = flour 
5/2:1 establishes the ratio. This is sufficient.

2) x=sugar 
x + 3/2 = flour 
x=1 and then flour could be 5/2 or 
x=2 and then flour could be 7/2..Since this variable, this is not sufficient.

Hence the answer A.

SchruteDwight · Answer

Should 250% more not be 3.5?

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

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