A 'Trial Balance' is a: MCQ with Answer and Explanation

Explanation:
In marginal costing, fixed overheads are treated as period costs and are not included in the cost of production. This is because marginal costing focuses on variable costs for short-term decision making. Both are true, but R is the underlying principle, not just an explanation of ignoring fixed costs.

Explanation:
Interest on capital, when deed provides, is an appropriation of profit, not a charge.

Explanation:
Marginal cost is indeed the cost of producing one additional unit. However, it only includes variable costs, as fixed costs do not change with the level of production in the short term. A is true, R is false.