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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

Prep ratio

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 66
Joined: Tue Jun 05, 2007 1:39 pm
Thanked: 1 times
by hakyology » Mon Aug 04, 2008 11:54 am
Alice's take-home pay last year was the same each month, and she saved the same fraction of her take-home pay each month. The total amount of money that she had saved at the end of the year was 3 times the amount of that portion of her monthly take-home pay that she did not save. If all the money that she saved last year was from her take-home pay, what fraction of her take-home pay did she save each month?




The answer is 1/5.

I got 1/4.

Please explain. Thanks in advance.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Newbie | Next Rank: 10 Posts
Posts: 4
Joined: Tue Jul 29, 2008 1:27 pm
Location: Santa CLara
Thanked: 1 times

I got 1/5

by Gaurav Tyagi » Mon Aug 04, 2008 12:48 pm
Let X= Alice's pay / month
let Y = fraction of pay (like 1/4 or 1/5 etc)
So, savings per month = XY
Savings for 12 monhts = 12 XY

fraction she is not saving per month = (1-Y)
Amount not saving per month = (1-Y)X

so,

3(1-Y)X = 12XY
3X - 3XY = 12XY
3X=15XY

Hence, Y = 1/5
Thanks,

GT
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 222
Joined: Fri Jan 04, 2008 8:10 pm
Thanked: 15 times

by sibbineni » Mon Aug 04, 2008 7:54 pm
let alice take home pay be X for each month
let Y be the amount saved each month

then the amount that she does not saves=X-Y

then for 12 months she saves =12Y

The total amount of money that she had saved at the end of the year was 3 times the amount of that portion of her monthly take-home pay that she did no12Y

12Y=3(X-Y)
4Y=X-Y
5Y=X
Y=1/5X

1/5 of the take home pay alice saves

I hope it is clear
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1