It is important to check all the vital information’s given in the question. 1 liter = 1000 ml
Then 6 liters = (1000 * 6) ml
= 6000 ml
Now
600 ml is the holding capacity of = 1 bottle
Then
6000 ml will be the holding capacity for = (1/600) * 6000
= 10 bottles
So a total of 10 bottles having capacity of 600 ml can be filled with 6 liters. I hope the procedure is easy enough for you to understand.