Question 129

The weights of five boxes are 10, 30, 50, 70 & 80 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes?

Solution

Combination of 160 kilograms = 70, 50, 30, 10

Combination of 180 kilograms = 80, 70, 30

Combination of 150 kilograms = 70, 50, 30

But there is no combination for 220 kilograms.

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

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