The weights of 4 boxes are 40, 70, 80 and 50 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 40, 70, 80 and 50 kilograms.Which of the fo

1.	The weights of 4 boxes are 40, 70, 80 and 50 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.	240
B.	160
C.	200
D.	220
Answer» E.