Answer:
2 kg fruit
Explanation:
We are told that the mass ratios are:
Meat:Veg:Fruit of 1:8:3
We can say 1 part meat, 8 parts vegetables, and 3 parts fruit.
That makes a total of 12 parts, 3 of which are fruit.
We can write (3 parts fruit)/(12 parts total)
and then multiply by the total kg, which we'll say is composed of 12 parts.
((3 parts fruit)/(12 parts total))*(9 kg)
(3/12)*(9) = (24/12) or 2 kg fruit