Concept:The working capital ratio measures a firm's ability to meet short-term obligations by comparing current assets with current liabilities.Explanation:Current assets are stock, debtors, cash at bank and cash in hand.Current assets=3,000+4,000+6,500+1,500=15,000Current liabilities are creditors and accrued expenses.Current liabilities=8,000+4,000=12,000Working capital ratio =12,00015,000=45Hence, the ratio is 5:4.Answer:5:4