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

Redeem

Square Countertop

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 113
Joined: Wed Dec 07, 2011 7:20 am
Thanked: 3 times

Square Countertop

by manik11 » Mon May 23, 2016 6:27 am
A square countertop has a square tile inlay in the center, leaving an untiled strip of uniform width around the tile. If the ratio of the tiled area to the total area of the countertop is 9 to 16, which of the following could be the width, in inches, of the strip?

I. 3
II. 5
III. 6

A) I only
B) III only
C) I and II only
D) II and III only
E) I, II and III

OA : E
Top
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 2663
Joined: Wed Jan 14, 2015 8:25 am
Location: Boston, MA
Thanked: 1153 times
Followed by:128 members
GMAT Score:770

by DavidG@VeritasPrep » Mon May 23, 2016 7:44 am
manik11 wrote:A square countertop has a square tile inlay in the center, leaving an untiled strip of uniform width around the tile. If the ratio of the tiled area to the total area of the countertop is 9 to 16, which of the following could be the width, in inches, of the strip?

I. 3
II. 5
III. 6

A) I only
B) III only
C) I and II only
D) II and III only
E) I, II and III

OA : E
Very similar to this question here: https://www.beatthegmat.com/ds-geometry-t284497.html

The short of it: any of the above are valid: just imagine that you have a 3, 5, or 6 inch strip. Why couldn't you then simply tweak the dimensions of the inlay until you have your desired ratio? Any positive value is possible
Veritas Prep | GMAT Instructor

Veritas Prep Reviews
Save $100 off any live Veritas Prep GMAT Course
Top
Post new topic Post Reply
• Page 1 of 1