10.A trader having accepted the following several bills falling due on different dates,

now desires to have these bills cancelled and to accept a new bill for the whole

amount payable on the average due date.

You are required to find the average due date.

11.The following is the account of Anand in the ledger of Kamlesh:

Calculate average due date and the amount of interest payable or receivable by

Anand at 6% per annum to 30th June, 2003.