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A 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: 550

Each 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.

A 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

Each 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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PhD in Applied Mathematics Love GMAT Quant questions and running.

A 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

Each 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} -------> 6.75

E wins _________________

KUDOS is the good manner to help the entire community.

Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
08 Oct 2012, 00:58

Expert's post

SOLUTION

A 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

Construct an equation: \frac{15}{100}=\frac{x}{45} --> x=6.57.

Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
11 Oct 2012, 12:38

Expert's post

SOLUTION

A 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

Construct an equation: \frac{15}{100}=\frac{x}{45} --> x=6.57.

Answer: E.

Kudos points given to everyone with correct solution. Let me know if I missed someone.
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