Consider that the conversion factor from kg to pound is 2.205
It means that an object of mass 1 on kg scale weighs 2.205 on a pounds scale,
[tex]1\text{ kg=2.205 Lb}[/tex]Now, we can convert the 75 kg as,
[tex]75\text{ kg=75}\times1\operatorname{kg}=75\times2.205Lb=165.375Lb[/tex]Thus, 75 kg is equivalent to 165.375 pounds (Lb).