A circular park of radius 35 m is surrounded by a path 7 m wide running around it on the outside. Gravelling the path costs ₹20 per m². Find the total cost in rupees. Take π = 22/7.

Question

Accepted Answer

33880. Outer radius = 35 + 7 = 42 m. Path area = (22/7)(42² − 35²) = (22/7)(1764 − 1225) = (22/7) × 539 = 1694 m². Cost = 1694 × 20 = ₹33880.

A circular park of radius 35 $m$ is surrounded by a path 7 $m$ wide running around it on the outside. Gravelling the path costs ₹20 per $m^{2}$ . Find the total cost in rupees. Take π = 22/7.

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A circular park of radius 35 m is surrounded by a path 7 m wide running around it on the outside. Gravelling the path costs ₹20 per m2. Find the total cost in rupees. Take π = 22/7.

Step-by-Step Solution

Master this topic in 30 minutes a day.

More Areas & Volumes practice

A circular park of radius 35 $m$ is surrounded by a path 7 $m$ wide running around it on the outside. Gravelling the path costs ₹20 per $m^{2}$ . Find the total cost in rupees. Take π = 22/7.