The weights of 4 boxes are 20 kg, 30 kg, 50 kg and 70 kg. If a combination of boxes is made using each box only once then the total weight of the combination cannot be:
- 170 kg
- 160 kg
- 150 kg
- None of these
Explanation
We are given:
- 4 boxes with weights: 20 kg, 30 kg, 50 kg, and 70 kg.
We need to determine which total weight cannot be made by combining these boxes.
Let's check the combinations:
- 20 + 30 + 50 + 70 = 170 kg
- 20 + 30 + 50 = 100 kg
- 20 + 30 + 70 = 120 kg
- 20 + 50 + 70 = 140 kg
- 30 + 50 + 70 = 150 kg
Now check if 160 kg can be made:
- The possible combinations do not result in 160 kg.
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