Total sales = Cash sales + Credit sales
Total sales = cost of goods sold + Gross profit
Cost of goods sold = opening stock + purchases – closing stock
= 30,000 + 2,95,000 – 25,000.
= 3,00,000
Gross profit is 25% on sales i.e. 1/4 on sales so 1/3 on cost i.e. 1/4-1 = 1/3
Gross profit = 3,00,000 * 1/3 = 1,00,000
Total sales = 3,00,000 + 1,00,000
= 4,00,000
Total sales = cash sales + credit sales
4,00,000 = 85,000 + credit sales
Credit sales = 4,00,000 – 85,000
= 3,15,000