Good morning.
So, I spent #50 and below is a record of my expenses and balance.
EXPENSE. BALANCE
20 ------------------------ 30
15 ------------------------ 15
9 ------------------------- 6
6 ----------------------- 0
total=50 ------------------- total =51

Now, see if you can explain the presence of the additional #1 or why the totals don't tally.
*That you don't see an answer doesn't mean its not there.

Just a little something to brighten up your morning. Be happy.