railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Logical Reasoning Puzzle Quant Based Puzzle
The weights of three boxes are 3 kg, 8 kg and 12 kg. Which of the following CANNOT be the total weight, in kg, of any combination of these boxes?
1
15
2
20
3
23
4
21