How to Implement Price List

1
  1. 1 to 3 kg, 10 USD (Total Price)
  2. 3 + to 10 kg, 20 USD (Total Price)
  3. 10+ kg, 20 USD + additional 3 USD per kilo
    example 15 kg
    basic 20 USD plus 5*3 = 15 USD
    Total 35 USD
    can someone help ?