Correct Option: B. Allowed to a debtor Detailed Explanation: In financial accounting, a cashbook is a financial journal that contains all cash receipts and cash payments, including bank deposits and withdrawals. It is divided into two sides: the debit side (receipts) and the credit side (payments). The discount column on the left-hand side of the cashbook specifically refers to discounts that are allowed to debtors.

1. Understanding Discounts:
2. Discount Allowed: This is a reduction in the amount that a debtor has to pay. It is often given as an incentive for early payment or as a goodwill gesture. When a business allows a discount to a debtor, it reduces the amount of cash that the debtor needs to pay.
3. Discount Received: This is a reduction in the amount that a business has to pay to its creditors. It is recorded on the credit side of the cashbook.
4. Why Option B is Correct:
5. The left-hand side of the cashbook (debit side) records all cash inflows, including amounts received from debtors. When a business allows a discount to a debtor, it is effectively reducing the amount that the debtor owes. This discount is recorded in the discount column on the left side because it represents a reduction in the cash inflow from that debtor.
6. For example, if a debtor owes $1,000 and the business allows a 10% discount, the debtor will only pay $900. The $100 discount is recorded in the discount allowed column, indicating a reduction in the expected cash inflow.
7. Why Other Options are Incorrect:
8. Option A: A received from a creditor: This option is incorrect because discounts received from creditors are recorded on the credit side of the cashbook, not the debit side. Discounts received reduce the amount payable to creditors, which is not what the left-hand side represents.
9. Option C: C received from a debtor: This option is misleading. While it mentions a debtor, it incorrectly states that the discount is received. Discounts received are recorded on the credit side, not the debit side. The left-hand side is for amounts received, not discounts received.
10. Option D: D allowed to a creditor: This option is also incorrect. Discounts allowed to creditors would not be recorded in the cashbook at all, as they pertain to payments made to creditors. Instead, they would affect the accounts payable and would not appear in the cashbook's discount column.

Example Calculation:

• Suppose a business sells goods worth $1,000 to a debtor and allows a 10% discount for early payment.
• The discount allowed would be calculated as: [ \text{Discount} = \text{Total Amount} \times \text{Discount Rate} = 1000 \times 0.10 = 100 ]
• The amount the debtor pays after the discount is: [ \text{Amount Paid} = \text{Total Amount} - \text{Discount} = 1000 - 100 = 900 ]
• In the cashbook, the left-hand side would show:
• Cash received: $900
• Discount allowed: $100

Common Pitfalls:

• Confusing discounts allowed with discounts received. Remember that discounts allowed reduce the amount owed by debtors and are recorded on the debit side, while discounts received reduce the amount owed to creditors and are recorded on the credit side.
• Not recognizing that the cashbook is a record of cash transactions, and discounts are adjustments to those transactions.

Revision Summary:

• The discount column on the left-hand side of the cashbook represents discounts allowed to debtors.
• Discounts allowed reduce the cash inflow from debtors and are recorded on the debit side.
• Discounts received from creditors are recorded on the credit side of the cashbook.
• Always differentiate between discounts allowed (debtors) and discounts received (creditors) to avoid confusion.