The total drawings at the end of each quarter = rupee 9,000.
The average period for quarterly drawings = 7.5 months (or 7.5/12 years). \[ \text{Interest} = \text{Total Drawings} \times {Rate} \times {Time} \] \[ \text{Interest} = rupee 36,000 \times 6\% \times \frac{7.5}{12} = rupee 810 \]
The correct IUPAC name of \([ \text{Pt}(\text{NH}_3)_2\text{Cl}_2 ]^{2+} \) is: