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1. A rectangle area of 16 meters by 12 meters. is surrounded by a road of 3 meters wide. The area of the road is:
- A. 78
- B. 78
- C. 78
- D. 78
Answer: Option C
Explanation:
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Area of the rectangle without the road = 16×12 = 192 sq. m.
Length with road on both side = 16 + 2×3 = 22 m.
Width with road on both side = 12 + 2×3 = 18 m.
Area of the rectangle including the road = 22×18 = 396 sq. m.
Area of the road = 396 - 192 = 204 sq. m.
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