The average weight of 87 Notebooks in a box is 8.7 kg. When

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The average weight of 87 Notebooks in a box is 8.7 kg. When a new Notebook is added to the box the average goes to 8.8 kg. Find the weight of the new Notebook. (in kg)

[RPF 13 Jan 2019]

A 17.7

B 17.6

C 17.5

D 17.8