Here's how to determine the impact on the Revaluation Account when Machinery is undervalued:
Revaluation Account Treatment:
When an asset's value increases, the Revaluation Account is credited. This is because the increase in asset value represents a profit for the existing partners.
Therefore, the Revaluation Account will be credited by ₹15,000.
The correct answer is:
(3) Revaluation A/c is credited by 15,000
Explanation using LaTeX:
Since the value of the machinery is increasing, it's a credit to the Revaluation Account.
Simar, Tanvi and Umara were partners in a firm sharing profits and losses in the ratio of 5:6:9. On 31st March, 2024 their Balance Sheet was as follows:

Umara died on 30th June, 2024. The partnership deed provided for the following on the death of a partner:
From the following information, prepare a Comparative Income Statement of Arun Ltd. for the year ended 31st March, 2024. 