It is known that the weight of apples is three times that of oranges, so the weight of oranges is 3x/5kg.
The weight of oranges is twice that of pears, so the weight of pears is 2x/5kg.
So x+3x/5+2x/5=480.
The solution is x=240.
That is, 240 kilograms of apples, 0/44 kilograms of oranges/kloc and 96 kilograms of pears.