Required solution :
Here we have been provided with the principal, rate of interest and the time period for which the loan was taken.
- Principal = $9000
- Rate = 8%
- Time = 6 years
Now, we know that simple Interest is calculated by the formula :
Here in this formula,
- S.I. is simple Interest
- R is rate of interest
- T is Time
- P is Principal
Putting all the values in the formula,
![: \: \implies \: \sf{S.I. \: = \: (9000 * 8 * 6 )/(100) }](https://img.qammunity.org/2022/formulas/business/high-school/tqglhd4os78cwa52c379aph5ijhasg9ywr.png)
![: \: \implies \: \sf{S.I. \: = \: (900 * 8 * 6 )/(10) }](https://img.qammunity.org/2022/formulas/business/high-school/qmteqy3onvxf1tvwzx9z201005eraki95j.png)
![: \: \implies \: \sf{S.I. \: = \: (90 * 8 * 6 )/(1) }](https://img.qammunity.org/2022/formulas/business/high-school/8p8pa3ywriurxxce18al8jz934ps365460.png)
![: \: \implies \: \sf{S.I. \: = \: 90 \: * \: 8 \: * 6 }](https://img.qammunity.org/2022/formulas/business/high-school/s4cmpdqvtvnys6ngacg9x4ht9h2or5quuu.png)
![: \: \implies \: \sf{S.I. \: = \: 90 \: * \: 48 }](https://img.qammunity.org/2022/formulas/business/high-school/k7fsc9sb0x9qypafoobnkhcnw1e0z5viw5.png)
![: \: \implies \: \underline{\underline \red{\sf{S.I. \: = \: 4320}}}](https://img.qammunity.org/2022/formulas/business/high-school/izhmag1t1jksle0s99j33j4es9jklbrgbb.png)
![\underline{ \bf{Henceforth, \: simple \: interest \: on \: that \: loan \: is \: 4320 \: dollars}}](https://img.qammunity.org/2022/formulas/business/high-school/8dgt4otzraom75ppwt5j683myer54qymx7.png)