The average weight of 103 notebooks in a box is 10.3 kg. When a new notebook is added to the box, the average weight goes up to 10.4 kg. Tell the weight of the new notebook.
1
20.7 kg
2
20.3 kg
3
20.5 kg
4
20.9 kg
The average weight of 103 notebooks in a box is 10.3 kg. When a new notebook is added to the box, the average weight goes up to 10.4 kg. Tell the weight of the new notebook.