1. 10 year:

-Interest: Based on the current lack of specific interest rate information, it is impossible to determine the amount of interest.

-Principal: total repayment minus interest, that is, 200,000 minus interest.

2. The period is 15 years:

-Interest: Again, the amount of interest is uncertain.

-Principal: total repayment minus interest, that is, 200,000 minus interest.

Summary:

Due to the lack of specific interest rates and detailed information, it is impossible to accurately calculate interest and principal. The specific value depends on the selected interest rate and repayment method (such as average capital or equal principal and interest). It is recommended to consult specific banks or financial institutions to obtain accurate calculation results.

Supplementary information:

In actual loans, the interest rate is usually determined by banks or financial institutions according to the borrower's credit rating, loan amount, loan term and other factors. Different repayment methods will also affect the monthly repayment amount. Generally speaking, the longer the repayment period, the lower the monthly repayment amount, but the higher the total interest expense. On the contrary, shorter repayment period means higher monthly repayment amount, but lower total interest expense. When choosing the loan term, you need to consider your personal economic situation and repayment ability.