A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 3 large boxes and 5 small boxes has a total weight of 135 kilograms. A delivery of 9 large boxes and 7 small boxes has a total weight of 279kilograms. How much does each type of box weigh?

You can not tell unless you have information about the relationship between the small and large boxes (for example, a large box is 2 times the weight of a small box) You can only tell that a small box and a large box's weight together is 34.5 kilograms.

Step-by-step explanation:

3L + 5S = 135

9L + 7S = 279

12L + 12S = 135 + 279

12 (S+L) = 414

S+L = 34.5