Explanation:

Debtors turnover ratio is the average collection period  3 months.
The accounts receivable turnover ratio is an accounting measure used to quantify a company's effectiveness in collecting its receivables or money owed by clients. The ratio shows how well a company uses and manages the credit it extends to customers and how quickly that short-term debt is collected or is paid. The receivables turnover ratio is also called the accounts receivable turnover ratio.