Answer: 76 kg
Explanation:
Question wants to know what their total weight is.
Paul weighs 36kg.
Felix weighs half as much as Paul which means that Felix weighs:
= 36 / 2
= 18 kg
Frank weighs 4 kg more than Felix and Felix weighs 18kg. Frank therefore weighs:
=18 + 4
= 22 kg
Their total weight is therefore:
= 36 + 18 + 22
= 76 kg