BTGmoderatorDC wrote:The perimeter of a rectangular garden is 360 ft. What is the length of the garden?
1) the length of the garden is twice the width
2) the difference between the length and width of the garden is 60 ft
OA D
Source: Official Guide
Perimeter of a rectangular garden = 2(a + b) = 360; where a = length and b = width
We have to determine the value of a.
Let's take each statement one by one.
1) The length of the garden is twice the width.
=> a = 2b
Thus, from 2(a + b) = 360 and a = 2b, we have 2(2b + b) = 360 => b = 60 and a = 2b = 120. Sufficient.
2) The difference between the length and width of the garden is 60 ft.
=> a - b = 60
Thus, from 2(a + b) = 360 and a - b = 60, we have a = 120. Sufficient.
The correct answer:
D
Hope this helps!
-Jay
_________________
Manhattan Review GMAT Prep
Locations:
GMAT Classes Austin |
GMAT Tutoring Denver |
GRE Prep Los Angeles |
TOEFL Prep Classes Las Vegas | and many more...
Schedule your free consultation with an experienced GMAT Prep Advisor!
Click here.
