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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.

Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
26 May 2014, 08:09

2

This post received KUDOS

Bunuel wrote:

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.

Bunuel, Isnt there a Type of 6.57, when it should be 6.75

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. _________________

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.

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=6.75.

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=6.75.

Answer: E.

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

Re: A glucose solution contains 15 grams of glucose per 100 [#permalink]
26 May 2014, 08:24

Expert's post

jatinsachani wrote:

Bunuel wrote:

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.

Bunuel, Isnt there a Type of 6.57, when it should be 6.75

Yes, it's a typo. Thank you for noticing. _________________

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.

Thank you!

i was totally ... and got this wrong...

but simple way is

(45*15)/100

6.75

gmatclubot

Re: A glucose solution contains 15 grams of glucose per 100
[#permalink]
10 Sep 2014, 21:00