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23 Nov 2015, 12:32
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
72% (01:05) correct
28%
(01:04)
wrong
based on 170
sessions
History
Date
Time
Result
Not Attempted Yet
A square picture frame has an outer perimeter of 36 inches and is 1 inch wide on all sides. What is the inner perimeter of the frame, in inches?
(A) 27
(B) 27.5
(C) 28
(D) 31.5
(E) 32
(A) 27
(B) 27.5
(C) 28
(D) 31.5
(E) 32
23 Nov 2015, 12:46
Kudos
Bookmarks
Bunuel
If the outer perimeter is 36 inches, then each outer side of the SQUARE frame is 9 inches (since 9 + 9 + 9 + 9 = 36)
The inner side of the frame will be 2 inches shorter on each side, since we lose 1 inch on both sides.
So, each inner side of the frame will have a length of 7 inches
So, the inner perimeter of the frame = 7 + 7 + 7 + 7 = 28 = C
Cheers,
Brent
24 Nov 2015, 12:28
Kudos
Bookmarks
Perimeter of outer square = sum of all sides = 36
all sides of square are equal, hence side of outer square = 36/4 = 9
Inner square has a distance of 1 both on left and on right, so side of inner square is = 9-1-1 = 7
Perimeter of Inner square = sum of all sides = 7+7+7+7 = 28.
all sides of square are equal, hence side of outer square = 36/4 = 9
Inner square has a distance of 1 both on left and on right, so side of inner square is = 9-1-1 = 7
Perimeter of Inner square = sum of all sides = 7+7+7+7 = 28.
