Tyler is tiling the floor of his 12 foot by 16 foot living room. He plans to place one-foot by one-foot square tiles to form a border along the edges of the room and to fill in the rest of the floor with two-foot by two-foot square tiles. How many tiles will he use?
A. 48
B. 87
C. 91
D. 96
E. 120

Perimeter area composite中文
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B. 87

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