DAY 07

Comment

Think of dividing all the bottles into quarters.
How many quarter-bottles are there altogether?

Answer

1/20.

Readers' methods

Stephen W, Peacehave BN10:
The answer is 1 20th because there is 4 quarters in one bottle.
Times that by 5 and you get 20, so that means that she has got 20 quarters.
So she has then drank 1 20th.