A bucket is in th

r₁ = 8cm , r₂ = 200 cm, h = 16cm

Volume of bucket =

= 10,449.92 cm³

= 10,449.92 × 10^-6 × m³

= 10,449.92 × 10^-6 × 10³ L

= 10, 449.92 × 10^-3 L

= 10. 449 L

Now , Cost of filling the milk = Rs 40 /L

∴ Cost of filling 10.449 L of milk = 10.449 × 40

= Rs 417.96

= Rs 418 (approx.)