A grocer has twelve weights, from 1 kg to 12 kg. He splits them into three groups of four weights each. The total weights of the first and second groups are 41 kg and 26 kg respectively. Which of the following weights is in the same group as the 9 kg weight?
Select one option, then click Submit.
3 kg
5 kg
7 kg
8 kg
10 kg
Select an option, then submit.
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