Answer:
The weight of pears is 3.08 kg
Explanation:
A farmer sells 7.7 kilograms of apples and pears.
3/5 of this weight is apples.
This means that the weight of apples is:
3/5 of 7.7
=>

The weight of apples is 4.62 kg.
The weight of pears will therefore be:

The weight of pears is 3.08 kg.