The weights of 4 boxes are 30, 70, 60 and 20 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?
A
180
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B
190
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C
120
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D
150
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Solution
The correct option is C 190 Maximum weight that can be obtained is 180 kilograms. Hence, 190 kilograms cannot be obtained