Question 1188389
The description is incomplete.  Not known how many of the group want large drinks and not known, how many people are in the group.
<pre>
Size          PRICE       HOW MANY     COST

LARGE          2.5          L          2.5L
 
MEDIUM         2.0          m          2m

SMALL          1.0          2m         2m
</pre>
Total money spent is {{{2.5L+4m}}}{{{dollars}}}.