According to IAS 28, when a parent company consolidates a subsidiary, any transactions between the parent and subsidiary should be eliminated in preparing the consolidated financial statements. In this case, since Blue Company owns 25% of Yellow Company, it should adjust its consolidated balance sheet and operating profit to reflect the elimination of intercompany transactions.
The inventory held by Blue Company from Yellow Company should be valued at the cost to Yellow Company, which is 170,000. Therefore, the correct adjustment in the consolidated balance sheet would be to reduce the inventory value from 250,000 to 170,000, reflecting the cost price. This reduction in the value of inventory would also lead to a corresponding reduction in operating profit, as the profit recognized in the initial purchase price of the inventory would be removed. Thus, the correct answer is:
Inventory reduced by 80,000 and operating profit reduced by 80,000.
This adjustment ensures that the consolidated financial statements reflect the true and fair view of the group's financial position and performance, eliminating the effects of intercompany transactions.