A person deposits ¢ 1,000 annually, in an account for 5 years, at the end of the 5 years, withdraws, half of the account balance, deposits ¢ 2,000 annually for 5 more years and at the end of the...

A person deposits ¢ 1,000 annually, in an account for 5 years, at the end of the 5 years, withdraws, half of the account balance, deposits ¢ 2,000 annually for 5 more years and at the end of the fifteenth year withdraws the Total balance. If the account accrues 8% interest. How much do I withdraw in total?
a) At the end of 5 years.
b) At the end of 15 years.