1. **Calculate the interest for the first year:**
- Principal, P = 6300
- Rate, r = 0.05 (5%)
- Interest for the first year, I_1 = P \cdot r = 6300 \cdot 0.05 = 315
2. **Calculate the new principal after the first year:**
- New Principal, P_{new} = P + I_1 = 6300 + 315 = 6615
3. **Calculate the interest for the second year:**
- Interest for the second year, I_2 = P_{new} \cdot r = 6615 \cdot 0.05 = 330.75
4. **Calculate the total balance at the end of the second year:**
- Balance, B=P_{new}+I_2=6615+330.75=6945.75
The interest earned during the first year is 315 . The interest earned during the second year is 330.75 . The balance at the end of the second year is 6945.75 .