Mr. John has borrowed $200 000 today on which he is to be charged 10% p.a. interest. Find the repayment schedule for the above amount in full using the following modes of repayment: a.)10 equal annual installments beginning from the 3^rd year-end onwards,

b.) 8 equal annual installments beginning from the 2^nd year-end onwards together with additional repayment of $10 000 each along with last 4 installments, and

c.) 6 annual installments beginning from the 3^rd year-end onwards, installment amount to be increased by $4 000 each year over the previous year.