Question

if 22.5 m of a uniform rod weighs 85.5 kg what will be the length of 22.8 kg of the same rod​

Answer 1

85.5 kg is the weight of 22.5 m

Then the length that weighs 1 kg is 22.5/85.5

The length that weighs 22.8 kg is (22.5/85.5)*22.8 = 6

The length of the rod is 6 m if its weight is 22.8 kg.