Number of 80 kilograms crates = x
GReatest weight that can be loaded in the container = 26500 kg
Shipments already loaded = 6300
Inequality:
(number of crates* weight of each crate )+ shipment already loaded ≤ container capacity
80 x + 6300 ≤ 26500
Solve for x:
80x ≤ 26500-6300
80x ≤20200
x ≤ 20200/80
x ≤ 252.5