Convert 88 lbs. to kgs.:
88 lbs ÷ 2.2 lbs/kg. = 40 kg.
1)First 20 kg = Php 1,100
2)Subtract the first 20 kg from total 40 kg:
40 kg. - 20 kg = 20 kg, remaining kg
3) For every succeeding 2 kg, the cost is Php60. Multiply by 20 remaining kg.
(Php 60/2kg) x (20 kg)
= (Php 30/kg) x (20 kg)
= Php 600
4) Add the freight charges:
Php 1,100 + Php 600 = Php 1,700, freight charges for 88 lbs.
