Question

On a circular cycle track whose inner radius is 50 m and outer radius is
71 m, leveling is to be done at the rate of Rs 10 per sq m.Find the cost of
Leveling the circular path?​

Answer 1

Answer:

Area of lane = π[(r1)² - (r2)²] = π(71²-50²) = π*(71+50)(71-50) = π*121*21 = 22*121*3 = 7986m²

cost of soil preperation = 7986*2 = 15972.

Answer 2

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