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A glucose solution contains 15 grams of glucose per 100 [#permalink]
 08 Oct 2012, 01:58
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7% (01:51) wrong based on 5 sessions
The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectA glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. If 45 cubic centimeters of the solution were poured into an empty container, how many grams of glucose would be in the container? (A) 3.00 (B) 5.00 (C) 5.50 (D) 6.50 (E) 6.75 Practice Questions
Question: 59
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 02:50
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Glucose in the original solution (%) = 15% Note - We can not separate glucose with out any extraction process Thus thus the percentage will remain constant i.e. 15% = 45 *.15 = 6.75 Answer E
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Last edited by fameatop on 08 Oct 2012, 11:20, edited 1 time in total.
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 04:46
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Bunuel wrote: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectA glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. If 45 cubic centimeters of the solution were poured into an empty container, how many grams of glucose would be in the container? (A) 3.00 (B) 5.00 (C) 5.50 (D) 6.50 (E) 6.75 Practice Questions
Question: 59
Page: 160
Difficulty: 600 GMAT Club is introducing a new project: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectEach week we'll be posting several questions from The Official Guide for GMAT® Review, 13th Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution. We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation. Thank you! If the concentration is 15%, it means that for every 100 cubic centimeters of solution we have 15 grams of glucose, or for every 100/20 = 5 cubic centimeter we have 15/20 = 3/4 grams of glucose. Therefore, in 45 = 9\cdot5 cubic centimeters of solution, we have 9\cdot\frac{3}{4}=\frac{27}{4}=6.75 grams of glucose. Answer E.
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 09:48
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its 6.75..
how i do it..
i take its Directly proportion or inverse proportion
Glucose 15 solution 100...
glucose X solution 45 ....
45*15/100=6.75
if it wud be inverse relation between them like solution increase and glucose decrease then we wud do like this
15*100/45
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 10:00
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Simple Unitary method : 100cm^3 -------------------------- 15gm 45cm^3 ---------------------------(15/100)*45 = 6.75 (i.e., E) Cheers 
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
11 Oct 2012, 03:52
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EvaJager wrote: Bunuel wrote: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectA glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. If 45 cubic centimeters of the solution were poured into an empty container, how many grams of glucose would be in the container? (A) 3.00 (B) 5.00 (C) 5.50 (D) 6.50 (E) 6.75 Practice Questions
Question: 59
Page: 160
Difficulty: 600 GMAT Club is introducing a new project: The Official Guide for GMAT® Review, 13th Edition - Quantitative Questions ProjectEach week we'll be posting several questions from The Official Guide for GMAT® Review, 13th Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution. We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation. Thank you! If the concentration is 15%, it means that for every 100 cubic centimeters of solution we have 15 grams of glucose, or for every 100/20 = 5 cubic centimeter we have 15/20 = 3/4 grams of glucose. Therefore, in 45 = 9\cdot5 cubic centimeters of solution, we have 9\cdot\frac{3}{4}=\frac{27}{4}=6.75 grams of glucose. Answer E. Nice as usual made by you the right solution  I like your approach. A bit straight should be \frac{15}{100} = \frac{x}{45} -------> 6.75E wins
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 01:58
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GMAT Club team member
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Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
11 Oct 2012, 13:38
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Re: A glucose solution contains 15 grams of glucose per 100
[#permalink]
11 Oct 2012, 13:38
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