The weights of 4 boxes are 10, 40, 50 and 80 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of theseÂ boxes and in a combination a box can be used only once?

The weights of 4 boxes are 10, 40, 50 and 80 kilograms. Which of the f

1.	The weights of 4 boxes are 10, 40, 50 and 80 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of theseÂ boxes and in a combination a box can be used only once?
A.	120
B.	100
C.	90
D.	110
Answer» E.