Answer:
The weight of apples is 11.95 tons.
Explanation:
The weight of the truck with load = 15 tons 100 pounds
The weight of the truck without load = 3 tons 200 pounds
We will convert all the values in tons. 
1 pound = 0.0005 ton
100 pounds = 
 tons
 tons
So, truck with load weighs 15.05 tons
200 pounds = 
 tons
 tons
So, truck without load weighs 3.10 tons.
Difference in weighs is = 
 tons
 tons
This difference is the weight of apples. 
Therefore, the weight of apples is 11.95 tons.