The circumference of a circular park is 314 m A 20 m wide concrete track runs round it - Maths - Areas Related to Circles

Question

The circumference of a circular park is 314 m A 20 m wide concrete
track runs round it Calculate the cost of laying the cost turf in
the park at Rs 1 25 per sq m and the cost of concrete ttrack at
Rs50 per m, [Use π = 3 14]

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The circumference of a circular park is 314 m. A 20 m wide concrete track runs round it . Calculate the cost of laying the cost turf in the park at Rs 1.25 per sq. m and the cost of concrete ttrack at Rs50 per m,. [Use π = 3.14]