Answer:
15 kg
Step-by-step explanation:
We can multiply the given ratio units by 6 to make them be integers:
(1/2) : (1/3) = 3 : 2
Then we can see that the second man has 2/3 the weight of the first man.
(2/3)(22.5 kg) = 15 kg
The second person weighs 15 kg.
