Question 129

The weights of five boxes are 20, 40, 40, 70 & 90 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes?

Solution

The combination of 190 = 20, 40, 40, 90
The combination of 180 = 20, 70, 90
The combination of 170 = 20, 40, 40, 70

There is no combination for 210.

$$\therefore$$ The correct answer is option C.


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