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 →

Squares& rectangles

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 17
Joined: Sun Oct 04, 2009 9:56 pm
by Fokin » Mon Jun 28, 2010 10:55 am
How many squares with sides 1/2 inch long are needed toc cover a rectangle that is 4 feet long and 6 feet wide?

(a) 24
(b) 96
(c) 3456
(d) 13824
(e) 14266
Answer - D

I've resolved in the following way:
1) S of 1 square= 1/2*1/2=1/4 inch
2) s of rectangular = 4*6=24 feet
3) 24*12/ 1/4=1152
Please to advice, what does it wrong?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 392
Joined: Sun May 16, 2010 2:42 amFollowed by: 10 members
Location: Bangalore, India
Thanked: 116 times
GMAT Score:770

by albatross86 » Mon Jun 28, 2010 11:08 am
4 feet = 48 inches and 6 feet = 72 inches

You need 96 rows and 144 columns.

Total squares = 96*144 = 13824

Pick D.

Your mistake is simply that you forgot to multiply by 12 twice for the area. It is square feet = 144 square inches

So it should be 24*12*12/ (1/4) = 13824

Your approach is fine.
~Abhay

Believe those who are seeking the truth. Doubt those who find it. -- Andre Gide
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 748
Joined: Sun Jan 31, 2010 7:54 amFollowed by: 3 members
Thanked: 46 times

by outreach » Mon Jun 28, 2010 11:24 am
1 feet=12 inch
hence 1/2inch=1/24 feet

area of square=1/24*1/24
area of rectangle =24 feet

squares needed to cover rectangle are

area of rectangle/are of square=24*24*24

hence D
-------------------------------------
--------------------------------------
General blog
https://amarnaik.wordpress.com
MBA blog
https://amarrnaik.blocked/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1