1 pound of the dry-fruit mixture?

This topic has expert replies
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 am
Location: India
Thanked: 267 times
Followed by:80 members
GMAT Score:760

1 pound of the dry-fruit mixture?

by sanju09 » Wed Feb 29, 2012 12:18 am
'The Dry-Fruit Company' sells a dry-fruit mixture containing 12 pounds of raisins, 4 pounds of almonds, and 4 pounds of walnuts. If the price of raisins, almonds and walnuts per pound is $a, $b, and $c respectively, what is the price (in dollars) of 1 pound of the dry-fruit mixture?
A. (a + 3b + 3c) / 5
B. (3a + b + c) / 5
C. (a + 4b + 4c) / 20
D. (12a + b + 4c) / 20
E. (12a + 4b + c) / 20
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pm
Location: Milpitas, CA
Thanked: 1854 times
Followed by:523 members
GMAT Score:770

by Anurag@Gurome » Wed Feb 29, 2012 12:36 am
sanju09 wrote:'The Dry-Fruit Company' sells a dry-fruit mixture containing 12 pounds of raisins, 4 pounds of almonds, and 4 pounds of walnuts. If the price of raisins, almonds and walnuts per pound is $a, $b, and $c respectively, what is the price (in dollars) of 1 pound of the dry-fruit mixture?
A. (a + 3b + 3c) / 5
B. (3a + b + c) / 5
C. (a + 4b + 4c) / 20
D. (12a + b + 4c) / 20
E. (12a + 4b + c) / 20
Weight of dry-fruit mixture = 12 + 4 + 4 = 20 pounds
Price of raisins = $a * 12 = $12a
Price of almonds = $b * 4 = $4b
Price of walnuts = $c * 4 = $4c
Total price of dry-fruit mixture = $(12a + 4b + 4c)

Therefore, price of 1 pound of the dry-fruit mixture = $(12a + 4b + 4c) / 20 = $4(3a + b + c)/20 = $[spoiler](3a + b + c)/5[/spoiler]

The correct answer is B.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/