A bank passbook is a physical or digital record provided by a bank to its customers. It serves as a summary of all transactions, including deposits and withdrawals, made in the customer's account. It acts as a primary source document for the customer to reconcile their bank balance with their own cash book records.

Crossing a cheque by drawing two parallel lines across its face indicates that the cheque cannot be cashed directly at the bank counter. Instead, it must be deposited into a bank account, which provides a security measure to track the recipient of the funds.

While banks generate and issue the bank statement, the depositor or customer is the party who keeps and maintains these statements for their own accounting records. The customer uses these statements to perform bank reconciliations to ensure their cash book matches the bank's records.

In the context of a bank's records (Pass Book), a credit balance signifies that the bank owes money to the customer, meaning the customer's deposits exceed their withdrawals. Conversely, a debit balance in the Pass Book would indicate an overdraft. Other options are incorrect because a Trial Balance can tally even with errors of omission, and credit customers can often receive cash discounts for early payment.

The debit side of a Bank Passbook represents withdrawals or charges made by the bank, which corresponds to the credit side of the Cash Book (bank column) where payments are recorded. Conversely, deposits in the passbook are credited, matching the debit side of the Cash Book.

When a customer makes a direct credit transfer into the business's bank account, the bank balance increases. Therefore, the Bank account must be debited. Simultaneously, the customer's account (the debtor) must be credited to reduce the amount they owe to the business. This entry ensures that the bank balance and the accounts receivable ledger are updated to reflect the settlement of the debt.

From the perspective of the bank, a customer's deposit is a liability, which is why a positive (favorable) balance in the customer's account is recorded as a credit balance in the bank's books. Conversely, a debit balance in the bank statement would indicate an overdraft or a negative position.

Under the double-entry system, a deposit is an asset to the business (debit balance) but a liability to the bank (credit balance). Therefore, the business's debit balance in its cash book should match the credit balance maintained by the bank in its own records, subject to timing differences.

From the perspective of the bank, a customer's deposit represents an obligation to repay that money, making it a liability for the bank. Therefore, when a business deposits cash, the bank records it as a credit to the customer's account, increasing the bank's liability to the depositor.

From the perspective of the bank, a customer's deposit represents an obligation to pay the customer, which is why it is recorded as a credit in the bank's ledger. When the business views its bank statement, a deposit increases the bank's liability to the business, appearing as a credit balance in the bank's records, which corresponds to an increase in the business's cash at bank asset.