4. A rectangular grassy lawn measuring 38 m by 25 m has been surrounded all bus
25-m-wide path calculate the cost of gravelling the path at the rate 120 per
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Answer and Step-by-step explanation:
Area of grassy lawn = 38×25 m² = 950 m²
The rectangle formed by the gravelled path plus grassy lawn has the size (38+2×2.5) m by (25+ 2×2.5)m.
The area of this rectangle = 1290 m²
Area of gravelled path = 340 m²
Cost = 340×120 Rs = Rs 40,800
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