BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
Live EA class + 6 months of EA OnDemand
  • Expert-led weekly online sessions
  • EA Masterclass access between classes
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

130-point score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

Algebra, milk gallons, GMAT prep 1

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 44
Joined: Wed May 13, 2009 5:40 am
Location: MN
Thanked: 1 times
GMAT Score:580
by LFalken » Tue Aug 25, 2009 5:49 am
Can someone show me how to solve this one please...

three grades of milk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of 1 percent, y gallons of 2 percent, and z gallons of the 3 percent grade are mixed to give x+y+z gallons of a 1.5 percent grade, what is x in terms of y+z?

a) y+3z
b) (y+z)/4
c) 2y+3z
d) 3y+z
e) 3y+4.5z

(the answer is A)... thanks!
LFAL
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 338
Joined: Fri Apr 17, 2009 1:49 amFollowed by: 3 members
Thanked: 9 times

by kaulnikhil » Tue Aug 25, 2009 6:47 am
(1/100)*x+(1/100)*y+(1/100)*z = 1.5/100(x+y+z)
solve we get
x = y+3z
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 44
Joined: Wed May 13, 2009 5:40 am
Location: MN
Thanked: 1 times
GMAT Score:580

by LFalken » Tue Aug 25, 2009 7:04 am
Thank you!


NOTE FOR ANYONE ELSE WHO LOOKS TO THIS:

1/100)*x+(1/100)*y+(1/100)*z = 1.5/100(x+y+z)
solve we get
x = y+3z


this is the correct methodology, however, notice that a "2" and "3" should be subsituted in the numerator for the fractions for variables y and Z.. thus equation will look as follows, in contrast to that above:

1/100)*x+(2/100)*y+(3/100)*z = 1.5/100(x+y+z)
solve we get
x = y+3z


again, thank you for the help!
LFAL
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1