list of balances

Hallo,

I have a question to the following example:

The assistant accountant of BC Ltd has prepared a sales ledger control account at 30
September 20X5 for you to reconcile with the list of sales ledger balances at that date. The control account balances are:
Debit balances $226,415
Credit balances $1,250

The list of balances extracted from the sales ledger totals $225,890. You discover the
following:
(i) The credit balances have been included on the list of receivables as debit balances.

Adjust the list of sales ledger balances.

Answer: Credit list of balances with 2500 (2×1250).

My commenting: The list of receivables is part of the Receivables sales ledger, correct? It has the individual accounts each with a dr and a cr side and is not part of the double entry, only a memo.

But the list of receivables is one column that shows the outstanding balances for each supplier, and this column is totalled, it has no Dr and no Cr side, correct?

So, my Q, when they talk that the credit balances (as per the control a/c of 1250) have been included on the list of receivables as debit balances, it seems they talk about the indivudual a/c, as only they have a dr and cr, but this can’t be, as the example says nothing how much should be credit and to which a/c. So, the only other option left is that 2500 have to be credited to the list of balances column, but this columng has no Dr and no Cr side, so how is this column then credited with 2500?

Thank you!