Opening Stock = Rs. 10,000 Purchases = Rs. 90,000 Closing stock = Rs. 28,000 Gross Profit = 10% of sales The amount of sales will be

Rs. 60,000
Rs. 72,000
Rs.80,000
Rs. 90,000

The correct answer is A. Rs. 60,000.

To calculate the sales, we can use the following formula:

Sales = Opening stock + Purchases – Closing stock + Gross profit

In this case, we have:

Sales = 10,000 + 90,000 – 28,000 + 10% of sales

Sales = 60,000

Option B is incorrect because it is the cost of goods sold. Option C is incorrect because it is the cost of goods sold plus the gross profit. Option D is incorrect because it is the purchases.