Question 1091789
Let's say you start out with X.
You use {{{(1/3)X}}} which leaves you with,
{{{X-(1/3)X=(2/3)X}}}
Then you buy the juice which leaves you with,
{{{(2/3)X-(1/4)(2/3)X=(3/4)(2/3)X=(1/2)X}}}
So then,
{{{(1/2)X=6000}}}
Solve for X.