One inch represents 20 miles on Map K and one inch represents 30 miles on Map L. An area of 3 square inches represents how many more square miles on Map L than on Map K?
A. 30
B. 400
C. 500
D. 900
E. 1,500
E
OG: One inch represents 20 miles on Map K and one inch represents 30 miles on Map L
This topic has expert replies
-
- Master | Next Rank: 500 Posts
- Posts: 394
- Joined: Sun Jul 02, 2017 10:59 am
- Thanked: 1 times
- Followed by:5 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
GMAT/MBA Expert
- Brent@GMATPrepNow
- GMAT Instructor
- Posts: 16207
- Joined: Mon Dec 08, 2008 6:26 pm
- Location: Vancouver, BC
- Thanked: 5254 times
- Followed by:1268 members
- GMAT Score:770
An area of 3 square inches represents how many more square miles on Map L than on Map K ?AbeNeedsAnswers wrote: ↑Tue May 19, 2020 7:05 pmOne inch represents 20 miles on Map K and one inch represents 30 miles on Map L. An area of 3 square inches represents how many more square miles on Map L than on Map K?
A. 30
B. 400
C. 500
D. 900
E. 1,500
E
If we want to find an area of 3 square inches, we can make things easy on ourselves by finding the area of a rectangle measuring 1 inch by 3 inches
One inch represents 20 miles on Map K
So, 1 inch = 20 miles on Map K
And 3 inches = 60 miles on Map K
Area = (20 miles)(60 miles) = 1200 square miles
One inch represents 30 miles on Map L
So, 1 inch = 30 miles on Map L
And 3 inches = 90 miles on Map L
Area = (30 miles)(90 miles) = 2700 square miles
DIFFERENCE in areas = 2700 - 1200 = 1500
Answer: E
Cheers,
Brent
GMAT/MBA Expert
- Scott@TargetTestPrep
- GMAT Instructor
- Posts: 7247
- Joined: Sat Apr 25, 2015 10:56 am
- Location: Los Angeles, CA
- Thanked: 43 times
- Followed by:29 members
On Map K, since 1 inch = 20 miles, then 1 in^2 = 400 mi^2, and 3 in^2 = 1200 mi^2.AbeNeedsAnswers wrote: ↑Tue May 19, 2020 7:05 pmOne inch represents 20 miles on Map K and one inch represents 30 miles on Map L. An area of 3 square inches represents how many more square miles on Map L than on Map K?
A. 30
B. 400
C. 500
D. 900
E. 1,500
E
On Map L, since 1 inch = 30 miles, then 1 in^2 = 900 mi^2, and 3 in^2 = 2700 mi^2.
Thus, the difference is 2700 - 1200 = 1500 mi^2.
Answer: E
Scott Woodbury-Stewart
Founder and CEO
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews