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A path 2.5 $m$ wide is laid outside a lawn 40 $m$ by 26 $m$ . Paving costs ₹30 per $m^{2}$ . What is the total cost?

Class 7Area of Paths and BordersPerimeter and Area

A₹31,200
B₹9,900
C₹41,850
D₹10,650

Step-by-Step Solution

Outer:

45 \times 31 = 1395 m^{2}

. Lawn:

1040 m^{2}

. Path =

355 m^{2}

. Cost =

355 \times 30

= ₹10,650. (₹9,900 misses the corners.)

Answer: D) ₹10,650

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