Answer:
Small - 15 lbs, Large - 60lbs.
Step-by-step explanation:
If the combined weight of a large box and a small box is 75 pounds, and the truck is carrying 5025 pounds in boxes, then the total number of large and small boxes on the truck is 5025/75 = 67 boxes.
Since the truck is carrying 65 large boxes and 70 small boxes, there are a total of 65 + 70 = 135 boxes on the truck.
Therefore, the weight of each small box is (5025 - 65*75)/70 = 15 pounds, and the weight of each large box is 75 - 15 = 60 pounds.