Answer:
Number of notebooks produced in 2 days = 1890
Number of notebooks produced in 1 day = ?
We have to divide the number of notebooks produced by the number of days it took:

So, 945 books are produced in a day by the company.
Number of notebooks produced in 10 days = ?
Now, we have to multiply the number of notebooks produced in 1 day & the number of days asked in the question:

=> 9450 notebooks are produced by the Paper Company in 10 days.