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A square is cut into 25 smaller equal squares. How many of the small
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11 Feb 2025, 11:13
11 Feb 2025, 11:13
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60% (00:41) correct
40% (00:55) wrong based on 5 sessions
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A square is cut into 25 smaller equal squares. How many of the smaller squares had only one of their sides along the perimeter of the bigger square?
A. 11
B. 12
C. 13
D. 14
E. 15
A. 11
B. 12
C. 13
D. 14
E. 15
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Re: A square is cut into 25 smaller equal squares. How many of the small
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20 Feb 2025, 12:43
20 Feb 2025, 12:43
1
Since the bigger square has 25 smaller squares, it's made up of 5x5 squares.
The "corner" squares do not count, since they have 2 of their sides along the perimeter of the bigger square.
This leaves 12 smaller squares that only touch the perimeter once.
The "corner" squares do not count, since they have 2 of their sides along the perimeter of the bigger square.
This leaves 12 smaller squares that only touch the perimeter once.
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gmatclubot
Re: A square is cut into 25 smaller equal squares. How many of the small [#permalink]
20 Feb 2025, 12:43
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