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A thoroughly blended biscuit mix includes only flour and bak

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Joined: 28 May 2014
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A thoroughly blended biscuit mix includes only flour and bak [#permalink]

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New post 21 Jul 2014, 08:30
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A thoroughly blended biscuit mix includes only flour and baking powder. What is the ratio of the number of grams of baking powder to the number of grams of flour in the mix?

(1) Exactly 9.9 grams of flour is contained in 10 grams of the mix.
(2) Exactly 0.3 gram of baking powder is contained in 30 grams of the mix
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Magoosh GMAT Instructor
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A thoroughly blended biscuit mix includes only flour and bak [#permalink]

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New post 21 Jul 2014, 10:09
Gmatbattle wrote:
A thoroughly blended biscuit mix includes only flour and baking powder. What is the ratio of the number of grams of baking powder to the number of grams of flour in the mix?
(1) Exactly 9.9 grams of flour is contained in 10 grams of the mix.
(2) Exactly 0.3 gram of baking powder is contained in 30 grams of the mix

Dear Gmatbattle,
I'm happy to help. :-)

This is a very easy question. It's almost too easy to appear on the GMAT. Keep in mind, it doesn't provide very rigorous practice for the GMAT Quant section.

Let's say that B is the ratio (baking powder):(whole), and F is the ratio (flour):(whole). Notice that B + F = 1, so that if we know one, we instantly know the other. There is really only one unknown here. The answer to the prompt would be B/F.

Statement #1 tell us F = 9.9/10 = 0.99. From this, we could find B, and then find B/F. This statement is sufficient.

Statement #2 tell us B = 0.3/30 = 0.01. From this, we could find F, and then find B/F. This statement is sufficient.

Both statements sufficient. Answer = (D)

Here are some more challenging practice problems on ratios:
http://magoosh.com/gmat/2013/gmat-quant ... oportions/

Mike :-)
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Mike McGarry
Magoosh Test Prep

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Re: A thoroughly blended biscuit mix includes only flour and bak [#permalink]

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New post 24 May 2017, 06:38
mikemcgarry wrote:
Gmatbattle wrote:
A thoroughly blended biscuit mix includes only flour and baking powder. What is the ratio of the number of grams of baking powder to the number of grams of flour in the mix?
(1) Exactly 9.9 grams of flour is contained in 10 grams of the mix.
(2) Exactly 0.3 gram of baking powder is contained in 30 grams of the mix

Dear Gmatbattle,
I'm happy to help. :-)

This is a very easy question. It's almost too easy to appear on the GMAT. Keep in mind, it doesn't provide very rigorous practice for the GMAT Quant section.

Let's say that B is the ratio (baking powder):(whole), and F is the ratio (flour):(whole). Notice that B + F = 1, so that if we know one, we instantly know the other. There is really only one unknown here. The answer to the prompt would be B/F.

Statement #1 tell us F = 9.9/10 = 0.99. From this, we could find B, and then find B/F. This statement is sufficient.

Statement #2 tell us B = 0.3/10 = 0.01. From this, we could find F, and then find B/F. This statement is sufficient.

Both statements sufficient. Answer = (D)

Here are some more challenging practice problems on ratios:
http://magoosh.com/gmat/2013/gmat-quant ... oportions/

Mike :-)


Hi Mike : I think its not 0.3 but its 0.1 (because 0.3 -- 30 0.1 -- 10 ).
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Re: A thoroughly blended biscuit mix includes only flour and bak [#permalink]

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New post 24 May 2017, 14:58
Bobbyvg wrote:
Hi Mike : I think its not 0.3 but its 0.1 (because 0.3 -- 30 0.1 -- 10 ).

Dear Bobbyvg,
Yes, I miscopied from the prompt. I edited my post above to correct the mathematics. Thank you very much for pointing this out. :-)
Mike :-)
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Mike McGarry
Magoosh Test Prep

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Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Re: A thoroughly blended biscuit mix includes only flour and bak   [#permalink] 24 May 2017, 14:58
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A thoroughly blended biscuit mix includes only flour and bak

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