The area of a rectangular place mat is 1600 m2. Its length is 400 m. Find its width.

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• A 4
• B 32
• C 40
• D 60

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Answer: A. 4

Area of a rectangle = length x width, so width = area / length. Width = 1600 / 400 = 4 m. Check: 400 x 4 = 1600.

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