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A street of width 10 metres surrounds from outside a rectangular garden whose measurement is 200 m × 180 m. The area of the path (in square metres) is
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- 8000
- 7000
- 7500
- 8200
- 8000
Correct Option: A
Area of garden without street = 200 × 180 = 36000 sq.metre
Area of garden with street = 220 × 200 = 44000 sq.metre
∴ Area of the path = 44000 – 36000 = 8000 sq.metre
Aliter : Using Rule 3,
Here, L = 200 m, B = 180 m
w = 10 m,
Area of path = 2w [L + B + 2w] = 2 × 10 (200 + 180 + 2 × 10)
= 20 (400) = 8000 m²
