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

Redeem

Reciprocal Area!

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 172
Joined: Mon Jun 23, 2008 12:00 pm
Thanked: 3 times
Followed by:1 members

Reciprocal Area!

by smclean23 » Thu Aug 07, 2008 7:09 pm
What is the area of a rectangular surface that has length x feet and width y feet ?

(1) y is the reciprocal of x.
(2) The perimeter of the rectangular surface is 5 feet.






Answer is A.

How?
Top
Source: — Data Sufficiency |
Legendary Member
Posts: 1153
Joined: Wed Jun 20, 2007 6:21 am
Thanked: 146 times
Followed by:2 members

by parallel_chase » Thu Aug 07, 2008 8:20 pm
The answer is indeed A.

Area of the rectangle = xy =?

Statement I

x=1/y

xy=1

Hence Sufficient.

Statement II

2(x+y)=5
x+y=5/2

hence Insufficient.

Answer is A.
Top
Post new topic Post Reply
• Page 1 of 1