How do I figure out this aging of receivables schedule?

The accounts receivable clerk for Evers Industries prepared the following partially completed aging of receivables schedule as of the end of business on November 30: Days Past Due Not Past Balance Due Over Customer Acme Industries Inc. Alliance Company 1-30 31-60 61-9o 90 3,400 3,400 4,000 4,000 11,100 Zollinger Company 11,100 Subtotals 712,600 430,400 156,800 68,400 35,600 21,400 The following accounts were unintentionally omitted from the aging schedule and not included in the subtotals above: Balance Due Date Customer Boyd Industries $10,000 July 10 Hodges Company 7,100 September 21 Kent Creek Inc. Lockwood Company 8,600 November 3 14,300 October 18 Van Epps Company 19,200 December 21 a. Determine the number of days past due for each of the preceding accounts as of November 30. If an account is not past due, enter O. Due Date Number of Days Past Due Customer Boyd Industries July 10 Hodges Company September 21 Kent Creek Inc. October 18 Lockwood Company November 3 days days days days days Van Epps Company December 21