general math MCQ #18

A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?

general math MCQ #18

  1. Question 1

    Q1. A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?

    • A) Rs0.45
    • B) Rs0.78
    • C) Rs0.44
    • D) Rs0.40

    Answer: Rs0.44

    Explanation: Path area = π(15² − 13²) = π × 56 ≈ 176 m²; cost = 176 × Rs.0.25 = Rs.44.