YOU SAID:

means I can drink 10 (10) beers a day

INTO JAPANESE

つまり、私は1日に10本のビールを飲むことができる。

BACK INTO ENGLISH

That means I can drink 10 beers a day.

INTO JAPANESE

つまり、私は1日にビールを10本飲めることになります。

BACK INTO ENGLISH

That means I can drink 10 beers a day.