A loan has a due date of December 20. If it is made on September 19, for how many days is the loan?

To determine the number of days for the loan, you can calculate the difference between the two dates: the loan date (September 19) and the due date (December 20). Here's how you can calculate it:

1. Determine the number of days in each month between September and December.
- September: 30 days.
- October: 31 days.
- November: 30 days.
- December: 20 days (assuming it's a regular year with December having 31 days).

2. Calculate the number of full months in between the two dates using the information above:
- October and November: 31 + 30 = 61 days.

3. Calculate the difference between the loan date and the due date:
- From September 19 to September 30: 11 days.
- From October 1 to December 19: 31 + 30 + 31 - 1 (excluding the due date) = 91 days.
- On December 20, count the due date itself.

4. Add up the total number of days:
11 + 61 + 1 = 73 days.

Therefore, the loan is for 73 days.

surely you can count days on a calendar...